fix: Improve log-in page UI

app/src/App.vue

@@ -1,9 +1,9 @@
 <template>
   <div class="bg-background-primary h-screen">
     <!--header-->
-    <div id="header" class="bg-background-secondary content-center h-[6vh] p-1">
+    <!-- <div id="header" class="bg-background-secondary content-center h-[6vh] p-1">
       <HeaderPart />
-    </div>
+    </div> -->
     <!-- route outlet -->
     <!-- component matched by the route will render here -->
     <router-view></router-view>