Connect profile picture upload to backend (#533)

* Connect profile picture upload to backend

* Fix tests

* Revert onboarding state changes

server/src/main.ts

@@ -4,7 +4,9 @@ import { AppModule } from './app.module';
 import { graphqlUploadExpress } from 'graphql-upload';
 
 async function bootstrap() {
-  const app = await NestFactory.create(AppModule, { cors: true });
+  const app = await NestFactory.create(AppModule, {
+    cors: true,
+  });
 
   // Apply validation pipes globally
   app.useGlobalPipes(new ValidationPipe());