Add internet radio (#1384)

src/renderer/router/routes.ts

@@ -25,6 +25,7 @@ export enum AppRoute {
     PLAYING = '/playing',
     PLAYLISTS = '/playlists',
     PLAYLISTS_DETAIL_SONGS = '/playlists/:playlistId/songs',
+    RADIO = '/radio',
     SEARCH = '/search/:itemType',
     SERVERS = '/servers',
     SETTINGS = '/settings',