Use 1.x preference abstraction (#8020)

* Use 1.x preference abstraction

- Uses SharedPreferences compared to 1.x impl which uses DataStore but it breaks all settings screens currently
- Move PreferencesHelper to new PreferenceStore
  - PreferencesHelper should be split into smaller preference stores and be in core or domain
- Remove flow preferences as new PreferenceStore handles changes for us

Co-authored-by: inorichi <3521738+inorichi@users.noreply.github.com>

* Fix PreferenceMutableState not updating

* Fix changes not emitting on first subscription

Co-authored-by: inorichi <3521738+inorichi@users.noreply.github.com>

app/src/main/java/eu/kanade/tachiyomi/data/notification/NotificationReceiver.kt

@@ -248,7 +248,7 @@ class NotificationReceiver : BroadcastReceiver() {
             val toUpdate = chapterUrls.mapNotNull { getChapter.await(it, mangaId) }
                 .map {
                     val chapter = it.copy(read = true)
-                    if (preferences.removeAfterMarkedAsRead()) {
+                    if (preferences.removeAfterMarkedAsRead().get()) {
                         val manga = getManga.await(mangaId)
                         if (manga != null) {
                             val source = sourceManager.get(manga.source)