refactored many events to use wails bindings, reducing boilerplate

frontend/src/store/controllers/player-controller.ts

@@ -12,7 +12,7 @@ import { playerStore } from '../player-store';
  *   render() {
  *     return html`
  *       <span>${this.player.currentTrack?.fileName}</span>
- *       <button @click=${() => this.player.play()}>Play</button>
+ *       <button @click=${() => this.player.pause()}>Pause</button>
  *     `;
  *   }
  */
@@ -67,10 +67,6 @@ export class PlayerController implements ReactiveController {
   // Delegate to store (which delegates to backend)
   // ===================================================================
 
-  play(): void {
-    playerStore.play();
-  }
-
   pause(): void {
     playerStore.pause();
   }

frontend/src/store/controllers/queue-controller.ts

@@ -71,6 +71,10 @@ export class QueueController implements ReactiveController {
   // ACTIONS
   // ===================================================================
 
+  play(): void {
+    queueStore.play();
+  }
+
   next(): void {
     queueStore.next();
   }