Add option to reset viewer flags (#7062)

* Add option to reset viewer flags

* Review Changes

* Run `resetViewerFlags()` content with `launchIO`

app/src/main/java/eu/kanade/domain/manga/interactor/ResetViewerFlags.kt

@@ -0,0 +1,11 @@
+package eu.kanade.domain.manga.interactor
+
+import eu.kanade.domain.manga.repository.MangaRepository
+
+class ResetViewerFlags(
+    private val mangaRepository: MangaRepository
+) {
+    suspend fun await(): Boolean {
+        return mangaRepository.resetViewerFlags()
+    }
+}

app/src/main/java/eu/kanade/domain/manga/repository/MangaRepository.kt

@@ -6,4 +6,6 @@ import kotlinx.coroutines.flow.Flow
 interface MangaRepository {
 
     fun getFavoritesBySourceId(sourceId: Long): Flow<List<Manga>>
+
+    suspend fun resetViewerFlags(): Boolean
 }