Improve app metadata, include fdroid metadata in repository

fastlane/metadata/android/en-US/changelogs/21.txt

fastlane/metadata/android/en-US/changelogs/22.txt

fastlane/metadata/android/en-US/changelogs/23.txt

fastlane/metadata/android/en-US/changelogs/24.txt

fastlane/metadata/android/en-US/changelogs/25.txt

fastlane/metadata/android/en-US/changelogs/3.txt

fastlane/metadata/android/en-US/changelogs/4.txt

fastlane/metadata/android/en-US/changelogs/5.txt

fastlane/metadata/android/en-US/changelogs/6.txt

fastlane/metadata/android/en-US/changelogs/7.txt

fastlane/metadata/android/en-US/changelogs/8.txt

fastlane/metadata/android/en-US/changelogs/9.txt

fastlane/metadata/android/en-US/full_description.txt

fastlane/metadata/android/en-US/images/featureGraphic.png

fastlane/metadata/android/en-US/images/icon.png

fastlane/metadata/android/en-US/short_description.txt

fastlane/metadata/android/en-US/title.txt

fastlane/metadata/android/fr-FR/changelogs/0.txt

fastlane/metadata/android/fr-FR/changelogs/1.txt

fastlane/metadata/android/fr-FR/changelogs/10.txt