restore basic Angular Universal build

frontend/src/main.server.ts

@@ -0,0 +1,11 @@
+
+import '@angular/localize/init';
+import { enableProdMode } from '@angular/core';
+import { environment } from './environments/environment';
+
+if (environment.production) {
+  enableProdMode();
+}
+
+export { AppServerModule } from './app/app.server.module';
+export { renderModule } from '@angular/platform-server';