hook to grab query parameters from react router

platform/viewer/src/hooks/index.js

@@ -0,0 +1,3 @@
+import useQuery from './useQuery.js';
+
+export { useQuery };

platform/viewer/src/hooks/useQuery.js

@@ -0,0 +1,5 @@
+import { useLocation } from 'react-router-dom';
+
+export default function useQuery() {
+  return new URLSearchParams(useLocation().search);
+}