chore: 注释掉生产环境的页面刷新拦截代码

移除了非开发环境下强制阻止页面卸载的逻辑，注释相关代码避免误拦截用户正常页面退出行为

src/App.vue

@@ -146,7 +146,7 @@ const switchViewMode = (mode: string) => {
 provide('switchViewMode', switchViewMode)
 
 if (import.meta.env.MODE !== 'development') {
-  window.onbeforeunload = () => false
+  // window.onbeforeunload = () => false
 }
 
 onMounted(async () => {