refactor: move responseDTOs to new package

Author: Kattsyn

rentplace/src/main/java/kattsyn/dev/rentplace/exceptions/GlobalExceptionHandler.java

@@ -3,7 +3,7 @@
 import io.jsonwebtoken.ExpiredJwtException;
 import jakarta.security.auth.message.AuthException;
 import jakarta.servlet.http.HttpServletRequest;
-import kattsyn.dev.rentplace.dtos.ErrorResponse;
+import kattsyn.dev.rentplace.dtos.responses.ErrorResponse;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.MethodArgumentNotValidException;