Add a TODO comment in groups.controller.ts

Inserted a TODO comment to indicate the need for a DTO in the newGroup method. This serves as a reminder for future development and enhances code readability and maintainability.

apps/backend/src/app/groups/groups.controller.ts

@@ -25,6 +25,7 @@ export class GroupsController {
 		@Query("search", new DefaultValuePipe("")) search: string,
 	) {}
 
+	//TODO DTO
 	@Post("new")
 	async newGroup() {}