style: prettify code

Author: JimQing

public/index.html

@@ -15,9 +15,7 @@
       name="viewport"
       content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0"
     />
-    <title>
-      <%= htmlWebpackPlugin.options.title %>
-    </title>
+    <title><%= htmlWebpackPlugin.options.title %></title>
     <link
       rel="stylesheet"
       href="<%= BASE_URL %>static/index.<%= VUE_APP_INDEX_CSS_HASH %>.css"