fix(ui): sort mappings (#3296)

* fix(ui): update sort mapping for title in mediafile repository

* fix(ui): create sort mapping for username in share repository

* fix(ui): create sort mapping for owner_name in playlist repository

* fix(ui): create sort mapping for username in player repository

* fix(ui): remove sort mapping for track number in mediafile repository

* chore: add todo to change user_name

persistence/share_repository.go

@@ -24,6 +24,9 @@ func NewShareRepository(ctx context.Context, db dbx.Builder) model.ShareReposito
 	r.ctx = ctx
 	r.db = db
 	r.registerModel(&model.Share{}, map[string]filterFunc{})
+	r.sortMappings = map[string]string{
+		"username": "username",
+	}
 	return r
 }