original bug is fixed but save modal is not handle (nav-item bg color is not correctly painted)

src/views/MainContainer.vue

@@ -42,7 +42,7 @@ export default {
     Loading
   },
   methods: {
-    ...mapActions(PageAdminStore, ['copyPendingPageToActivePage',],),
+    ...mapActions(PageAdminStore, ['copyPendingPageToActivePage', 'setPrevioiusPage'],),
   },
   created() {
     // Save token in Headers.
@@ -50,6 +50,9 @@ export default {
     this.$http.defaults.headers.common['Authorization'] = `Bearer ${token}`;
   },
   beforeRouteUpdate(to, from, next) {
+    this.setPrevioiusPage(from.name);
+    console.log("beforeRouteUpdate from.name", from.name)
+
     // 離開 Map 頁時判斷是否有無資料和需要存檔
     if ((from.name === 'Map' || from.name === 'CheckMap') && this.tempFilterId) {
       // 傳給 Map，通知 Sidebar 要關閉。