Fix useOus endpoint

frontend/src/hooks/useOus/index.tsx

@@ -10,7 +10,7 @@ type OuData = {
 function useOus(): OuData[] {
   const [ous, setOus] = useState<OuData[]>([])
   const getOptions = async () => {
-    const response = await fetch('/api/ui/v1/ous/', fetchJsonOpts())
+    const response = await fetch('/api/ui/v1/ous', fetchJsonOpts())
     if (response.ok) {
       const ousJson = await response.json()
       setOus(ousJson)