feat: new next_page signature, query/mutation fn in notifier and safe update in use_updater

packages/fl_query_hooks/lib/src/utils/use_updater.dart

@@ -1,10 +1,20 @@
+import 'package:flutter/scheduler.dart';
 import 'package:flutter/widgets.dart';
 import 'package:flutter_hooks/flutter_hooks.dart';
 
 ValueChanged<dynamic> useUpdater() {
   final state = useState(false);
   final isMounted = useIsMounted();
-  return ([_]) {
-    if (isMounted()) state.value = !state.value;
+  return ([_]) async {
+    if (!isMounted()) return;
+
+    // if there's a current frame,
+    if (SchedulerBinding.instance.schedulerPhase != SchedulerPhase.idle) {
+      // wait for the end of that frame.
+      await SchedulerBinding.instance.endOfFrame;
+      if (!isMounted()) return;
+    }
+
+    state.value = !state.value;
   };
 }