Add genre list route and implementation

src/renderer/router/routes.ts

@@ -13,6 +13,8 @@ export enum AppRoute {
     LIBRARY_ARTISTS_DETAIL = '/library/artists/:artistId',
     LIBRARY_FOLDERS = '/library/folders',
     LIBRARY_GENRES = '/library/genres',
+    LIBRARY_GENRES_ALBUMS = '/library/genres/:genreId/albums',
+    LIBRARY_GENRES_SONGS = '/library/genres/:genreId/songs',
     LIBRARY_SONGS = '/library/songs',
     NOW_PLAYING = '/now-playing',
     PLAYING = '/playing',