fix unlocalized favorites browser title and alttext

apps/files/js/favoritesfilelist.js

@@ -28,7 +28,7 @@ $(document).ready(function() {
 		FavoritesFileList.prototype = _.extend({}, OCA.Files.FileList.prototype,
 			/** @lends OCA.Files.FavoritesFileList.prototype */ {
 			id: 'favorites',
-			appName: 'Favorites',
+			appName: t('files','Favorites'),
 
 			_clientSideSort: true,
 			_allowSelection: false,

apps/files/js/tagsplugin.js

@@ -40,7 +40,7 @@
 		}
 		return this._template({
 			isFavorite: state,
-			altText: state ? t('core', 'Favorited') : t('core', 'Favorite'),
+			altText: state ? t('files', 'Favorited') : t('files', 'Favorite'),
 			imgFile: getStarImage(state)
 		});
 	}