revert 72ae855640822b633785d93cd5702e1491459149

revert prevent context menu

src/App.vue

@@ -134,10 +134,6 @@ document.addEventListener('pointerdown', (e) => {
   }
 });
 
-document.addEventListener('contextmenu', (e) => {
-  e.preventDefault();
-});
-
 const loadProgress = ref({ download: 0, decode: 0 });
 
 const mainVideoURL = new URL('./assets/main.mp4', import.meta.url).href;