Add days count selectors in settings page

android/gradle.properties

assets/translations/en.json

assets/translations/fr.json

fastlane/metadata/android/en-US/changelogs/36.txt

fastlane/metadata/android/fr-FR/changelogs/36.txt

lib/config/default_settings.dart

lib/config/settings.dart

lib/cubit/settings_cubit.dart

lib/cubit/settings_state.dart

lib/ui/widgets/cards/counts_by_day.dart

lib/ui/widgets/cards/counts_by_hour.dart

lib/ui/widgets/cards/discoveries.dart

lib/ui/widgets/cards/statistics_recent.dart

lib/ui/widgets/cards/timeline.dart

lib/ui/widgets/cards/top_artists.dart

lib/ui/widgets/settings_form.dart

pubspec.yaml