feat: 新增 web-view 组件

src/platforms/h5/view/components/web-view/index.vue

 <template>
-  <uni-web-view/>
+  <uni-web-view>
+    <iframe
+      :src="realSrc"
+      frameborder="0"
+      width="100%"
+      height="100%"/>
+  </uni-web-view>
 </template>
 <script>
 export default {
-  name: 'WebView'
+  name: 'WebView',
+  props: {
+    src: {
+      type: String,
+      default: ''
+    }
+  },
+  data () {
+	  return {
+		  realSrc: this.$getRealPath(this.src)
+	  }
+  }
 }
 </script>
+<style>
+	uni-web-view iframe {
+		position: absolute;
+	}
+</style>