Perform download cache renewal async

Don't block on cache renewals, but notify library on updates so that the badges show up when ready.

We skip the cache when checking if a chapter is downloaded for the reader assuming that it's a
relatively low cost to check for a single chapter.

(Probably) fixes #8254 / fixes #7847

app/src/main/java/eu/kanade/tachiyomi/ui/library/LibraryPresenter.kt

@@ -39,6 +39,7 @@ import eu.kanade.presentation.library.components.LibraryToolbarTitle
 import eu.kanade.tachiyomi.R
 import eu.kanade.tachiyomi.data.cache.CoverCache
 import eu.kanade.tachiyomi.data.database.models.toDomainManga
+import eu.kanade.tachiyomi.data.download.DownloadCache
 import eu.kanade.tachiyomi.data.download.DownloadManager
 import eu.kanade.tachiyomi.data.track.TrackManager
 import eu.kanade.tachiyomi.source.SourceManager
@@ -88,6 +89,7 @@ class LibraryPresenter(
     private val coverCache: CoverCache = Injekt.get(),
     private val sourceManager: SourceManager = Injekt.get(),
     private val downloadManager: DownloadManager = Injekt.get(),
+    private val downloadCache: DownloadCache = Injekt.get(),
     private val trackManager: TrackManager = Injekt.get(),
 ) : BasePresenter<LibraryController>(), LibraryState by state {
 
@@ -338,7 +340,8 @@ class LibraryPresenter(
         val libraryMangasFlow = combine(
             getLibraryManga.subscribe(),
             libraryPreferences.downloadBadge().changes(),
-        ) { libraryMangaList, downloadBadgePref ->
+            downloadCache.changes,
+        ) { libraryMangaList, downloadBadgePref, _ ->
             libraryMangaList
                 .map { libraryManga ->
                     // Display mode based on user preference: take it from global library setting or category

app/src/main/java/eu/kanade/tachiyomi/ui/reader/ReaderPresenter.kt

@@ -392,7 +392,7 @@ class ReaderPresenter(
         if (chapter.pageLoader is HttpPageLoader) {
             val manga = manga ?: return
             val dbChapter = chapter.chapter
-            val isDownloaded = downloadManager.isChapterDownloaded(dbChapter.name, dbChapter.scanlator, manga.title, manga.source)
+            val isDownloaded = downloadManager.isChapterDownloaded(dbChapter.name, dbChapter.scanlator, manga.title, manga.source, skipCache = true)
             if (isDownloaded) {
                 chapter.state = ReaderChapter.State.Wait
             }
@@ -463,6 +463,7 @@ class ReaderPresenter(
             nextChapter.scanlator,
             manga.title,
             manga.source,
+            skipCache = true,
         ) || downloadManager.getChapterDownloadOrNull(nextChapter) != null
         if (isNextChapterDownloadedOrQueued) {
             downloadAutoNextChapters(chaptersNumberToDownload, nextChapter.id, nextChapter.read)

app/src/main/java/eu/kanade/tachiyomi/ui/reader/viewer/ReaderTransitionView.kt

@@ -57,6 +57,7 @@ class ReaderTransitionView @JvmOverloads constructor(context: Context, attrs: At
                 prevChapter.scanlator,
                 manga.title,
                 manga.source,
+                skipCache = true,
             )
             val isCurrentDownloaded = transition.from.pageLoader is DownloadPageLoader
             binding.upperText.text = buildSpannedString {
@@ -94,6 +95,7 @@ class ReaderTransitionView @JvmOverloads constructor(context: Context, attrs: At
                 nextChapter.scanlator,
                 manga.title,
                 manga.source,
+                skipCache = true,
             )
             binding.upperText.text = buildSpannedString {
                 bold { append(context.getString(R.string.transition_finished)) }