优化平台数据获取逻辑

src/store/modules/system.js

@@ -6,6 +6,7 @@ export default {
         getTabIndex: 0,
         orderTabIndex: 0,
         platformData: {
+            loaded: false,
             about: "",
             privacy: "",
             register: "",
@@ -37,8 +38,12 @@ export default {
     },
     actions: {
         async platformData(context, data) {
+            if (context.state.platformData.loaded) return;
             await system.platformData().then(data => {
-                context.commit('platformData', data);
+                context.commit('platformData', {
+                    ...data,
+                    loaded: true
+                });
             });
         }
     }