Redirect to request when there is a processing request

What does this mr do?

When people who have a processing request try to access the lab page, this will be forwarded to their request for this lab instead.

Screenshots

before

after

Does this MR meet the acceptance criteria?

• I have added a changelog entry to reflect the significant changes I made.
• Tests were created to test the feature.
• I have updated the documentation accordingly.
• I adhere to the style guide.

src/main/java/nl/tudelft/queue/controller/LabController.java

@@ -142,10 +142,16 @@ public class LabController {
 						.collect(Collectors.toList()));
 
 		// Check whether there is an open request for the authenticated user and add it to the model
-		qSession.getOpenRequestForPerson(person.getId()).ifPresent(r -> {
-			model.addAttribute("current", r.toViewDTO());
-			model.addAttribute("currentDto", new ModelMapper().map(r, RequestPatchDTO.class));
-		});
+		Optional<?> currOptRequest = qSession.getOpenRequestForPerson(person.getId());
+		if (currOptRequest.isPresent()) {
+			Request<?> currRequest = (Request<?>) currOptRequest.get();
+			// If the user is currently being processed it should be looking at the request page
+			if (currRequest.getEventInfo().getStatus().isProcessing()) {
+				return "redirect:/request/" + currRequest.getId();
+			}
+			model.addAttribute("current", currRequest.toViewDTO());
+			model.addAttribute("currentDto", new ModelMapper().map(currRequest, RequestPatchDTO.class));
+		}
 
 		// Check whether there is a finished selection request for the authenticated user and add it
 		if (qSession instanceof CapacitySession) {