Fix AuTA feedback v2

• Remove @Transactional to not rollback all changes when an exception occurs (feedback was rolled back, but grades are submitted to core immediately).
• Make setPendingState not create missing SubmitSubmissions in favour of creating SubmitSubmissions before running the script.
• Fix typo

src/main/java/nl/tudelft/submit/controller/SubmissionController.java

@@ -23,8 +23,6 @@ import java.util.List;
 import java.util.Map;
 import java.util.stream.Collectors;
 
-import javax.transaction.Transactional;
-
 import nl.tudelft.labracore.api.dto.*;
 import nl.tudelft.labracore.lib.security.user.AuthenticatedPerson;
 import nl.tudelft.labracore.lib.security.user.Person;
@@ -51,9 +49,8 @@ import org.springframework.web.bind.annotation.*;
 import org.springframework.web.multipart.MultipartFile;
 import org.springframework.web.multipart.MultipartHttpServletRequest;
 
-@Transactional
-@RequestMapping("/submission")
 @Controller
+@RequestMapping("/submission")
 public class SubmissionController {
 
 	@Value("${submit.filesys.storage-dir}")