feat: beautify welcome code

src/template/App.vue

@@ -1,10 +1,30 @@
 <script setup lang="ts">
-import { ref } from "vue";
+import { ref } from 'vue';
 
-const msg = ref("Hello World!");
+const msg = ref('Hello World!');
 </script>
 <template>
-  <h1>{{ msg }}</h1>
-  <van-field v-model="msg" />
-  <van-button>Click</van-button>
+  <h1 style="text-align: center;">{{ msg }}</h1>
+  <van-form>
+    <van-cell-group inset>
+      <van-field
+        name="用户名"
+        label="用户名"
+        placeholder="用户名"
+        :rules="[{ required: true, message: '请填写用户名' }]"
+      />
+      <van-field
+        type="password"
+        name="密码"
+        label="密码"
+        placeholder="密码"
+        :rules="[{ required: true, message: '请填写密码' }]"
+      />
+    </van-cell-group>
+    <div style="margin: 16px">
+      <van-button round block type="primary" native-type="submit">
+        提交
+      </van-button>
+    </div>
+  </van-form>
 </template>

src/template/main.vue

@@ -2,7 +2,6 @@
 import App from './App.vue'
 import { setupVant } from "./vant";
 
-console.log('nemo setup ok')
 setupVant();
 </script>