支持SSR、升级Vue版本和增加新的icon (#40)

* search component add new style

* update vue version and support ssr

* unit test

* add new icon

* new icon

docs/examples-docs/uploader.md

@@ -3,6 +3,7 @@
   padding: 5px 15px;
 }
 </style>
+
 <script>
 export default {
   methods: {
@@ -57,6 +58,16 @@ export default {
     <van-icon name="photograph"></van-icon>
   </van-uploader>
 </div>
+
+<script>
+export default {
+  methods: {
+    logContent(file) {
+      console.log(file)
+    }
+  }
+};  
+</script>
 ```
 :::