Checkin onboarding (EXPOSUREAPP-5580) (#2677)

* check in onboarding screen

* show onboarding only once

* BottomBarBadge exploration

* fixed unit test

* fixed unit test

* renamed strings

* comments for translation tool

* moved dependency to view model

* applied style to button

* fixed styles

* fixed binding class

* moved preferences into settings class

* satisfied static code analysis

* added missing text

* fixed margin

* fixed data reset

* changed alignment

* changed texts again

* missing strings in default file

* fixed merge issues

* fixed nav graph

* show information

* updated image

* hide button if consent is already given

* updated images

* legal texts <3

* added the close button in information

* renamed images files

* missing space before { 



Co-authored-by: Matthias Urhahn <matthias.urhahn@sap.com>
Co-authored-by: Mohamed <mohamed.metwalli@sap.com>
Co-authored-by: harambasicluka <64483219+harambasicluka@users.noreply.github.com>