Allow targeting different environments with deply. Add version string on the web App component.

web/vue.config.js

@@ -1,3 +1,10 @@
+const merge = require('deepmerge');
+const VERSION = {
+  'process.env': {
+    PM_VERSION: JSON.stringify(require('./package.json').version)
+  }
+};
+
 module.exports = {
   devServer: {
     proxy: {
@@ -17,5 +24,11 @@ module.exports = {
       analyzerMode: 'static',
       openAnalyzer: false
     }
+  },
+
+  chainWebpack: config => {
+    config
+      .plugin('define')
+      .tap(args => merge(args, [VERSION]))
   }
 };