enable prod mode for angular

src/services/desktopPlatformUtils.service.ts

@@ -1,5 +1,7 @@
 import { remote, shell } from 'electron';
 
+import { isDev } from '../scripts/utils';
+
 import { DeviceType } from 'jslib/enums';
 
 import { I18nService } from 'jslib/abstractions/i18n.service';
@@ -143,4 +145,8 @@ export class DesktopPlatformUtilsService implements PlatformUtilsService {
 
         return Promise.resolve(result === 0);
     }
+
+    isDev(): boolean {
+        return isDev();
+    }
 }