fix(webpack): set global appVersion

webpack.config.js

@@ -7,6 +7,7 @@ const NodePolyfillPlugin = require('node-polyfill-webpack-plugin')
 const TerserPlugin = require('terser-webpack-plugin')
 
 const appName = 'side_menu'
+const appVersion = '6.x'
 const buildMode = process.env.NODE_ENV
 const isDev = buildMode === 'development'
 
@@ -80,6 +81,7 @@ module.exports = {
 
     new webpack.DefinePlugin({
       appName: JSON.stringify(appName),
+      appVersion: JSON.stringify(appVersion),
     }),
   ],