(cherry picked from commit a0ef0270)

This fixes the APK build with 5.15.8, at the expense of making that the
minimum supported version. On the up side, this is also necessary for Qt 6
compatibility.

That's not supported by the fastlane metadata generation script.

In particular this adds textual alternatives for the product/line logo
icons.

This fixes the APK build with 5.15.8, at the expense of making that the
minimum supported version. On the up side, this is also necessary for Qt 6
compatibility.

In case of conflict in i18n, keep the version of the branch "ours"
To resolve a particular conflict, "git checkout --ours path/to/file.desktop"

In case of conflict in i18n, keep the version of the branch "ours"
To resolve a particular conflict, "git checkout --ours path/to/file.desktop"

This allows to import events from common iCal files, not just those we
have special extractors for.

Also fixes a wrong label on the arrival platform field.