🎨 Improving structure / format of the code.

pigx-gateway/src/main/java/com/pig4cloud/pigx/gateway/filter/PasswordDecoderFilter.java

@@ -35,6 +35,7 @@ import org.springframework.stereotype.Component;
 import org.springframework.web.util.UriComponentsBuilder;
 import reactor.core.publisher.Mono;
 
+import javax.crypto.Cipher;
 import javax.crypto.spec.IvParameterSpec;
 import javax.crypto.spec.SecretKeySpec;
 import java.net.URI;