Show past labs on calendar

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

@@ -167,10 +167,10 @@ public class HomeController {
 					.stream()
 					.collect(Collectors.toMap(EditionDetailsDTO::getId, Function.identity()));
 
-			var sessions = sCache.get(editions.values().stream()
+			Set<SessionDetailsDTO> sessions = new HashSet<>(sCache.get(editions.values().stream()
 					.flatMap(e -> e.getSessions().stream())
-					.filter(s -> s.getEnd().isAfter(now))
-					.map(SessionSummaryDTO::getId)).stream().collect(Collectors.toSet());
+					.filter(s -> s.getEnd().isAfter(now.minusMonths(1)))
+					.map(SessionSummaryDTO::getId)));
 
 			var sharedEditions = editions.values().stream().map(EditionDetailsDTO::getEditionCollections)
 					.flatMap(List::stream).map(e -> ecCache.getOrThrow(e.getId()))
@@ -180,6 +180,7 @@ public class HomeController {
 					lr.findAllBySessions(
 							sessions.stream().map(SessionDetailsDTO::getId).collect(Collectors.toList())));
 
+			sessions = sessions.stream().filter(s -> s.getEnd().isAfter(now)).collect(Collectors.toSet());
 			var labs = sessions.stream().collect(Collectors.toMap(SessionDetailsDTO::getId,
 					s -> es.sortLabs(View.convert(lr.findAllBySessions(List.of(s.getId())),
 							QueueSessionSummaryDTO.class)).stream()