Allow manga titles to update from source if they are not in library (#6177)

The previous rationale for not allowing manga titles to update (at all) was that it would be confusing for users if a manga's title arbitrarily changed when the source changed it. Presumably, users would care less about this arbitrary change for manga that is not in library, so this provides a path for getting a manga's title updated, and prevents incorrect titles from persisting in the DB for manga that get title updates but aren't in library.

app/src/main/java/eu/kanade/tachiyomi/ui/browse/source/browse/BrowseSourcePresenter.kt

@@ -202,6 +202,10 @@ open class BrowseSourcePresenter(
             val result = db.insertManga(newManga).executeAsBlocking()
             newManga.id = result.insertedId()
             localManga = newManga
+        } else if (!localManga.favorite) {
+            // if the manga isn't a favorite, set its display title from source
+            // if it later becomes a favorite, updated title will go to db
+            localManga.title = sManga.title
         }
         return localManga
     }

app/src/main/java/eu/kanade/tachiyomi/ui/browse/source/globalsearch/GlobalSearchPresenter.kt

@@ -267,6 +267,10 @@ open class GlobalSearchPresenter(
             val result = db.insertManga(newManga).executeAsBlocking()
             newManga.id = result.insertedId()
             localManga = newManga
+        } else if (!localManga.favorite) {
+            // if the manga isn't a favorite, set its display title from source
+            // if it later becomes a favorite, updated title will go to db
+            localManga.title = sManga.title
         }
         return localManga
     }

app/src/main/java/eu/kanade/tachiyomi/ui/manga/MangaPresenter.kt

@@ -204,6 +204,10 @@ class MangaPresenter(
                 val sManga = networkManga.toSManga()
                 manga.prepUpdateCover(coverCache, sManga, manualFetch)
                 manga.copyFrom(sManga)
+                if (!manga.favorite) {
+                    // if the manga isn't a favorite, set its title from source and update in db
+                    manga.title = sManga.title
+                }
                 manga.initialized = true
                 db.insertManga(manga).executeAsBlocking()