chore: update HLS segments and App.vue tweaks

src/App.vue

@@ -113,7 +113,13 @@ watch([() => store.qteTimeRelax, () => store.qteSingleKey], () => {
 
 watch(() => store.preferredQuality, (q) => {
   engine.videoManager.streamingQuality = q
-})
+  const scene = store.currentScene
+  if (scene?.streamingUrl && q) {
+    const url = engine.videoManager.resolveVideoUrl(scene, q)
+    const ct = engine.videoManager.getCurrentTime()
+    engine.videoManager.switchQuality(url, ct)
+  }
+}, { immediate: true })
 
 watch(
   () => [