a few small fixes, about to add 404 exceptions most places i do fetches

srcs/requirements/nestjs/api_back/src/friendship/friendship.service.ts

@@ -85,6 +85,8 @@ export class FriendshipService {
 
 		if (!friendship) {
 			throw new HttpException(`There is no such friendship`, HttpStatus.NOT_FOUND);
+			// throw new HttpException(`There is no such friendship`, HttpStatus.NO_CONTENT);
+			// throw new HttpException(`There is no such friendship`, 204);
 		}
 		return new SendableFriendship(friendship);
 	}