refine: store key

src/components/fg-tabbar/tabbar.ts

@@ -17,9 +17,9 @@ export const tabbarList = [
  * tabbar 状态，增加 storageSync 保证刷新浏览器时在正确的 tabbar 页面
  */
 export const tabbarStore = reactive({
-  curIdx: uni.getStorageSync('curIdx') || 0,
+  curIdx: uni.getStorageSync('app-tabbar-index') || 0,
   setCurIdx(idx: number) {
     this.curIdx = idx
-    uni.setStorageSync('curIdx', idx)
+    uni.setStorageSync('app-tabbar-index', idx)
   },
 })