Import fix

Author: MateStrysewske

sormas-backend/src/main/java/de/symeda/sormas/backend/sample/SampleFacadeEjb.java

@@ -50,6 +50,7 @@
 import de.symeda.sormas.backend.common.MessageType;
 import de.symeda.sormas.backend.common.MessagingService;
 import de.symeda.sormas.backend.common.NotificationDeliveryFailedException;
+import de.symeda.sormas.backend.common.QueryContext;
 import de.symeda.sormas.backend.contact.Contact;
 import de.symeda.sormas.backend.contact.ContactFacadeEjb;
 import de.symeda.sormas.backend.contact.ContactJurisdictionChecker;