- Migrate sources filter screen to full compose
- Use standard "OK"/"Cancel" actions for delete category dialog
- Abstract some AppBar logic
- Remove some dead code
- Group related strings
(cherry picked from commit e2510c144ad3568caf81660d6ab1b4023202aad4)
# Conflicts:
# app/src/main/java/eu/kanade/presentation/browse/SourcesFilterScreen.kt
# app/src/main/java/eu/kanade/presentation/manga/MangaScreen.kt