[TECHNICAL] Bump Android SDK to API 35 (Android 15)

[jesmrec]

Android 15's SDK was released last summer, so, we are at the point to include it in the app to avoid Google's tight deadlines.

It will be a good start point for the next release.

Source: https://support.google.com/googleplay/android-developer/answer/11926878

Android 15 overview: https://developer.android.com/about/versions/15

Behaviour changes for all apps: https://developer.android.com/about/versions/15/behavior-changes-all
Behaviour changes for apps targeting Android 15 or higher: https://developer.android.com/about/versions/15/behavior-changes-15