Search in library include manga description (#4787)

Co-Authored-By: jobobby04 <jobobby04@gmail.com>

Co-authored-by: jobobby04 <jobobby04@gmail.com>
(cherry picked from commit 01c3498dbf)

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

@@ -102,6 +102,7 @@ class LibraryItem(val manga: LibraryManga, private val libraryDisplayMode: Prefe
         return manga.title.contains(constraint, true) ||
             (manga.author?.contains(constraint, true) ?: false) ||
             (manga.artist?.contains(constraint, true) ?: false) ||
+            (manga.description?.contains(constraint, true) ?: false) ||
             sourceManager.getOrStub(manga.source).name.contains(constraint, true) ||
             if (constraint.contains(",")) {
                 constraint.split(",").all { containsGenre(it.trim(), manga.getGenres()) }