add like

messageTypes.ts

@@ -107,3 +107,14 @@ export class SkipSong extends StuenMessage {
     }
 }
 
+export class ToggleSongLike extends StuenMessage {
+    constructor() {
+        super('ToggleSongLike');
+    }
+}
+
+export class SongLikes extends StuenMessage {
+    constructor(public listeners: string[]) {
+        super('SongLikeChanged');
+    }
+}