* adjusted icon size on main about, adjusted text spacing

* design adjustments and spacings

* changed onboarding flow; user does not get navigated to screen 4 after declining tracing permission; explicit denial required

* catch exception when no browser or phone app installed

* fixed main overview a18n contrast issue

* merged external navigation helpers into single helper object

* adjusted bluetooth settings navigatioN

* added custom exception for external actions; added external action helper

* fixed build issues

Co-authored-by: harambasicluka <64483219+harambasicluka@users.noreply.github.com>

* TAN Input
- adjust stroke width to match design
- increase spacing before tan input
- wrap blocks to next line if not enough space
- include errors in TalkBack

* - properly format styles.xml
- move custom control to view package

* settings reset navigation removed

* risk card button background to colorBackground

* notification settings when os notifications are turned off

* fixed neutral night mode color

* fixed version alignment

* fixed formatter issue

* updated logos

* app information and main overview design small adjustment

* settings row overview icon placement

* increased grey box padding top

* illustration updated, some still todo after designer patch

* illustration test and untested fixed

* settings try catch fix

* bugfix tracing state during exception crash

* submission illustration hotline

* updated submission illustration warn others

* design polishing

* fixed tests

Co-authored-by: Muschko <marc.muschko@sap.com>

* fixes repository refresh of successful last risk level calculation after app reset

* adaptive launch icons

* Revert "adaptive launch icons"

This reverts commit 5f8d9bcb0668680d27cb2f2b3e42f993804829eb.

* default dialog button text color added

* small fixes, todos removed when applicable

* fixed phone number string

* added link to exposure settings  from app reset

* resolved build issue

* settings icon tracing resized, missing grey color added

* fixed dark mode / light mode illustrations

* fixed small issue in strings

* OnBoardingTracingFragment: catch exceptions also for asyncIsEnabled() (#282)

Executing `InternalExposureNotificationClient.asyncIsEnabled()` may also result in an exception of `com.google.android.gms.common.api.ApiException` if connection to GMS isn't possible. Not catching this exception results in fatal crash.

```
2020-06-08 16:33:29.693 20904-20904/de.rki.coronawarnapp E/AndroidRuntime: FATAL EXCEPTION: main
    Process: de.rki.coronawarnapp, PID: 20904
    com.google.android.gms.common.api.ApiException: 17: API: Nearby.EXPOSURE_NOTIFICATION_API is not available on this device. Connection failed with: ConnectionResult{statusCode=UNKNOWN_ERROR_CODE(39507), resolution=null, message=null}
        at com.google.android.gms.common.internal.ApiExceptionUtil.fromStatus(com.google.android.gms:play-services-base@@17.3.0:4)
        at com.google.android.gms.common.api.internal.ApiExceptionMapper.getException(com.google.android.gms:play-services-base@@17.3.0:2)
        at com.google.android.gms.common.api.internal.zah.zaa(com.google.android.gms:play-services-base@@17.3.0:18)
        at com.google.android.gms.common.api.internal.GoogleApiManager$zaa.zaa(com.google.android.gms:play-services-base@@17.3.0:211)
        at com.google.android.gms.common.api.internal.GoogleApiManager$zaa.zaa(com.google.android.gms:play-services-base@@17.3.0:217)
        at com.google.android.gms.common.api.internal.GoogleApiManager$zaa.zaa(com.google.android.gms:play-services-base@@17.3.0:115)
        at com.google.android.gms.common.api.internal.GoogleApiManager$zaa.onConnectionFailed(com.google.android.gms:play-services-base@@17.3.0:79)
        at com.google.android.gms.common.internal.zag.onConnectionFailed(com.google.android.gms:play-services-base@@17.3.0:2)
        at com.google.android.gms.common.internal.BaseGmsClient$zzf.zza(com.google.android.gms:play-services-basement@@17.3.0:6)
        at com.google.android.gms.common.internal.BaseGmsClient$zza.zza(com.google.android.gms:play-services-basement@@17.3.0:25)
        at com.google.android.gms.common.internal.BaseGmsClient$zzc.zzc(com.google.android.gms:play-services-basement@@17.3.0:11)
        at com.google.android.gms.common.internal.BaseGmsClient$zzb.handleMessage(com.google.android.gms:play-services-basement@@17.3.0:49)
        at android.os.Handler.dispatchMessage(Handler.java:106)
        at com.google.android.gms.internal.common.zzi.dispatchMessage(com.google.android.gms:play-services-basement@@17.3.0:8)
        at android.os.Looper.loop(Looper.java:223)
        at android.os.HandlerThread.run(HandlerThread.java:67)
```

Co-authored-by: Jakob Möller <jakob.moeller@sap.com>
Co-authored-by: marcmuschko <marc.muschko@sap.com>

* build fixes in tests

Co-authored-by: lenke182 <jan_lenke@freenet.de>
Co-authored-by: Jakob Möller <jakob.moeller@sap.com>

* Change teleTAN from 7 to 10 characters

# Conflicts:
#	Corona-Warn-App/src/main/res/values/dimens.xml

* adjust TAN input to updated design

# Conflicts:
#	Corona-Warn-App/src/main/res/values/dimens.xml

* move TAN to upper case centrally

* styling of filled/empty TAN input spaces

* replace gradient at TAN entry with solid shape

* fix TAN input dash style

* add teleTAN input validation

* ensure valid characters are entered
* block further input if character is invalid
* mark invalid characters accordingly
* show error message if character is invalid
* calculate checksum
* show error and prevent the user from clicking „next“ if checksum is invalid

* code formatting

* Add include to TAN fragment

* Update teleTAN entry info text

* remove code smells

* Change detection of valid characters in TAN to whitelist

* add tests for TanHelper

* add tests for SubmissionTanViewModel

* use ROOT locale and specific charset for string operations

* extend tests for submissionTanViewModel

* override synced translations

Co-authored-by: Jakob Möller <jakob.moeller@sap.com>

* Submission Status Cards
- fix interaction behavior (expand clickable target)
- unify inclusion into fragment_main.xml
- fix alignment of icons including hands
- fix spacing between text and icon
- simplify layout (remove unnecessary ConstraintLayout)
- remove unused string
- fixed unregistered text style

* Submission Styling
- increase spacing before "Info zum Ablauf"
- replace step icons used in submission contact
- fix wrong illustration for negative test result
- added rounded corners to test result card
- fixed spacing between text and illustration
- removed unused icon ic_icon_drilldowncard_dark.xml
- fixed button padding on test result screen

Main Fragment
- simplified using merge_guidelines_side

* Submission Styling
- replace illustration for positive tests on homescreen (different background)
- add pressed state to submission dispatcher cards
- fix missing spacing adjustment between text and icons

This reverts commit 8577f8d4.

* Change teleTAN from 7 to 10 characters

# Conflicts:
#	Corona-Warn-App/src/main/res/values/dimens.xml

* adjust TAN input to updated design

# Conflicts:
#	Corona-Warn-App/src/main/res/values/dimens.xml

* move TAN to upper case centrally

* styling of filled/empty TAN input spaces

* replace gradient at TAN entry with solid shape

* fix TAN input dash style

* add teleTAN input validation

* ensure valid characters are entered
* block further input if character is invalid
* mark invalid characters accordingly
* show error message if character is invalid
* calculate checksum
* show error and prevent the user from clicking „next“ if checksum is invalid

* code formatting

* Add include to TAN fragment

* Update teleTAN entry info text

* remove code smells

* Change detection of valid characters in TAN to whitelist

* add tests for TanHelper

* add tests for SubmissionTanViewModel

Co-authored-by: Jakob Möller <jakob.moeller@sap.com>

* replaced custom header with toolbar

* removed fadingScrollView

* toolbar

* excluded translation from lint for dev

* main header

* fixed id

* icon fix

* added navigation to risk details

* illustrations prepare for dark mode

* removed unused ressource

* dark mode illustrations submission flow

* removed legacy fragment

* assets updated

* data privacy onboarding text

* illustration icons submission

* fixed privacy illustration

* behavior icons

* fixed main light mode illustrations for submission

* - unused SubmissionSuccessDialogFragment.kt removed

* - remove merge_guidelines_common.xml
- fragment_submission_test_result.xml scrolling behavior

* - submission flow text styles replaced
- submission positive result card updated

* - submission status cards updated

* - remove old text styles
- lint error fixed

* cleanup styles from xml

* updated settings illustrations

* onboarding illustrations

* information illustrations

* updated main illustrations overview / share

* icon adjustments

* refactiored illustiration usage

* grey background & removed light button elevation

* light theme

* dark & stable colors

* fix

* onboarding text styles

* main overview text styles

* information screen text styles

* risk

* fix

* settings styling text

* settings text

* saved risk level display bound to model

* fixed nullpointer

* adjust settings styling / layout

* main overview small design adjustment

Co-authored-by: Luka Harambasic <luka.harambasic@sap.com>

Co-authored-by: marcmuschko <marc.muschko@sap.com>

* font styles from spec

* merge

Co-authored-by: marcmuschko <marc.muschko@sap.com>

- enable disabled state for primary button
- simplify submission tan

* color definitions from design spec added (day & night)

* common:
- adjust style of button & buttonPrimary
- adjust style of textTitle
- adjust style of textMultiline

submission intro:
- simplify the layout
- change headline style

* Changes to TAN contact page

Added operating hours and changed style/string values slightly.

* submission dispatcher fragment
- style update
- text typo fixed

* updated test result illustrations

updated test result illustrations, changed button colour

* Update strings.xml

slight text change to match style

* submission warn others:
- scrolling behavior fixed
- style updated
- illustration replaced

* submission done fragment:
- style updated
- first behavior row exchanged

* submission done fragment: illustration content description

* submission tan fragment: style updated

* replace colorGreen & colorRed with semantic colors

* - unused color removed
- colorRiskCardIncreasedRisk and colorRiskCardLowRisk referencing semantic colors

* submission status cards style update

* emphasized button text color in dark mode adjusted

Co-authored-by: Oliver Zimmerman <oezimmerman@gmail.com>

* teletan
- update texts to match lower and upper case
- remove similar character exclusion
- filter spaces and non-alpha numeric characters

* qr code scan: update required pattern

* qr code: refactor GUID parsing

* introduced settings navigation helper

* added connection and bluetooth stati to main and tracing settings

* moved strings

* removed unnecessary backgroundTint

Co-authored-by: marcmuschko <marc.muschko@sap.com>