- Also fix concurrent accesses to main cache map
- Also debounce sources and updates list updates to maybe avoid crashing due to dupe LazyColumn keys
(cherry picked from commit 152eb5b95196a32ed120f4a57996c1958294bf7f)
# Conflicts:
# app/src/main/java/eu/kanade/tachiyomi/ui/browse/source/SourcesPresenter.kt
# app/src/main/java/eu/kanade/tachiyomi/ui/manga/MangaPresenter.kt