style(web): 优化代码缩进

gringotts-frontend/pages/index/tab-overview.js

@@ -1,9 +1,9 @@
 export function tabOverview() {
-    return {
-        title: '概览',
-        icon: 'fa fa-house',
-        body: [
-            'hello world'
-        ]
-    }
+  return {
+    title: '概览',
+    icon: 'fa fa-house',
+    body: [
+      'hello world'
+    ]
+  }
 }