Update dependencies

.ncurc

@@ -1,5 +1,9 @@
 {
     "reject": [
-        "eslint",
+        // https://github.com/beverloo/volunteer-manager/issues/8
+        "@types/react",
+        "@types/react-dom",
+        "react",
+        "react-dom"
     ]
 }

app/admin/events/[event]/hotels/HotelAssignment.tsx

@@ -41,14 +41,16 @@ function HotelAssignmentPersonSelect(props: HotelAssignmentPersonSelectProps) {
     const { field, hasFocus, id } = props;
 
     const context = useGridApiContext();
+    if (context.current === null)
+        throw new Error('The Grid API context is not available');
 
     const handleAutocompleteChange = useCallback((event: unknown, value: string) => {
-        context.current.setEditCellValue({ id, field, value });
+        context.current!.setEditCellValue({ id, field, value });
     }, [ context, field, id ]);
 
     const handleInputChange = useCallback(
         (event: React.ChangeEvent<HTMLTextAreaElement | HTMLInputElement>) => {
-            context.current.setEditCellValue({ id, field, value: event.currentTarget.value });
+            context.current!.setEditCellValue({ id, field, value: event.currentTarget.value });
         }, [ context, field, id ]);
 
     const ref = useRef<HTMLTextAreaElement | HTMLInputElement>();