fix(monitor/submission): wrong re-start for SignalR

src/GZCTF/ClientApp/src/pages/games/[id]/monitor/Submissions.tsx

@@ -164,7 +164,7 @@ const Submissions: FC = () => {
         })
       }
     }
-  })
+  }, [])
 
   const filteredSubs = newSubmissions.current.filter(
     (item) => type === 'All' || item.status === type