WIP: Implement frontend

frontend/src/environments/environment.prod.ts

@@ -0,0 +1,6 @@
+import packageInfo from 'package.json';
+
+export const environment = {
+  production: true,
+  VERSION: packageInfo.version
+};

frontend/src/environments/environment.ts

@@ -0,0 +1,18 @@
+// This file can be replaced during build by using the `fileReplacements` array.
+// `ng build` replaces `environment.ts` with `environment.prod.ts`.
+// The list of file replacements can be found in `angular.json`.
+import packageInfo from 'package.json';
+
+export const environment = {
+  production: false,
+  VERSION: packageInfo.version
+};
+
+/*
+ * For easier debugging in development mode, you can import the following file
+ * to ignore zone related error stack frames such as `zone.run`, `zoneDelegate.invokeTask`.
+ *
+ * This import should be commented out in production mode because it will have a negative impact
+ * on performance if an error is thrown.
+ */
+// import 'zone.js/plugins/zone-error';  // Included with Angular CLI.