add folder browsing support (#315)

src/renderer/features/sidebar/components/sidebar-playlist-list.tsx

@@ -92,6 +92,7 @@ const PlaylistRowButton = ({ item, name, onContextMenu, onPlay, to }: PlaylistRo
                 const modalProps: {
                     albumId?: string[];
                     artistId?: string[];
+                    folderId?: string[];
                     genreId?: string[];
                     initialSelectedIds?: string[];
                     playlistId?: string[];
@@ -108,6 +109,9 @@ const PlaylistRowButton = ({ item, name, onContextMenu, onPlay, to }: PlaylistRo
                     case LibraryItem.ARTIST:
                         modalProps.artistId = sourceIds;
                         break;
+                    case LibraryItem.FOLDER:
+                        modalProps.folderId = sourceIds;
+                        break;
                     case LibraryItem.GENRE:
                         modalProps.genreId = sourceIds;
                         break;

src/renderer/features/sidebar/components/sidebar.tsx

@@ -47,6 +47,7 @@ export const Sidebar = () => {
             Artists: t('page.sidebar.albumArtists', { postProcess: 'titleCase' }),
             'Artists-all': t('page.sidebar.artists', { postProcess: 'titleCase' }),
             Favorites: t('page.sidebar.favorites', { postProcess: 'titleCase' }),
+            Folders: t('page.sidebar.folders', { postProcess: 'titleCase' }),
             Genres: t('page.sidebar.genres', { postProcess: 'titleCase' }),
             Home: t('page.sidebar.home', { postProcess: 'titleCase' }),
             'Now Playing': t('page.sidebar.nowPlaying', { postProcess: 'titleCase' }),