Fix crash with chapterFlags in Manga.create() (#7530)

app/src/main/java/eu/kanade/domain/manga/model/Manga.kt

@@ -136,7 +136,7 @@ data class Manga(
             lastUpdate = -1L,
             dateAdded = -1L,
             viewerFlags = -1L,
-            chapterFlags = -1L,
+            chapterFlags = 0L,
             coverLastModified = -1L,
             artist = null,
             author = null,