fix: detach clickout listener in beforeDestroy

src/mixins/clickout.js

@@ -4,7 +4,7 @@ export default {
       document.documentElement.addEventListener('click', this._clickOutListener)
     }
   },
-  destroyed () {
+  beforeDestroy () {
     if (typeof document !== 'undefined') {
       document.removeEventListener('click', this._clickOutListener)
     }