Chore : remove json from back

src/app.controller.ts

@@ -1,6 +1,6 @@
-import { Controller, Put } from '@nestjs/common';
+import { Controller } from '@nestjs/common';
 import { AppService } from './app.service';
-import { ApiOperation, ApiTags } from '@nestjs/swagger';
+import { ApiTags } from '@nestjs/swagger';
 
 @ApiTags('admin')
 @Controller()

src/app.module.ts

@@ -5,8 +5,6 @@ import { AppController } from './app.controller';
 import { AppService } from './app.service';
 import { GamesModule } from './games/games.module';
 import { UsersModule } from './users/users.module';
-import { CardsService } from './cards/cards.service';
-import { CardsModule } from './cards/cards.module';
 import { EventEmitterModule } from '@nestjs/event-emitter';
 
 @Module({