Enhance SubmissionDetailsModal by adding max height and overflow properties to DialogContent for improved usability and responsiveness.

src/pages/submissions/SubmissionsPage.tsx

@@ -449,9 +449,11 @@ const SubmissionDetailsModal: React.FC<SubmissionDetailsModalProps> = ({
 
   return (
     <DialogRoot open={isOpen} onOpenChange={(e) => !e.open && onClose()} size="xl">
-      <DialogContent>
+      <DialogContent maxH="90vh" overflowY="auto">
         <DialogHeader>
-          <DialogTitle>{t('challenge.admin.submissions.details.title')} #{submission.attemptNumber}</DialogTitle>
+          <DialogTitle>
+            {t('challenge.admin.submissions.details.title')} #{submission.attemptNumber}
+          </DialogTitle>
         </DialogHeader>
         <DialogBody>
           <VStack gap={6} align="stretch">