Submission Design Review Adjustments (#277)

* 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