fix(ci): visibility_detector error on tests fixed

Author: arpandaze

pubspec.lock

@@ -1440,7 +1440,7 @@ packages:
     source: hosted
     version: "3.0.2"
   visibility_detector:
-    dependency: transitive
+    dependency: "direct main"
     description:
       name: visibility_detector
       sha256: ec932527913f32f65aa01d3a393504240b9e9021ecc77123f017755605e48832

pubspec.yaml

@@ -140,6 +140,8 @@ dependencies:
 
   focus_detector: ^2.0.1
 
+  visibility_detector: ^0.2.2
+
   meta: ^1.0.0
 
   mutex: ^3.1.0

test/editor_undo_redo_test.dart

@@ -9,6 +9,7 @@ import 'package:saber/data/flavor_config.dart';
 import 'package:saber/data/prefs.dart';
 import 'package:saber/i18n/strings.g.dart';
 import 'package:saber/pages/editor/editor.dart';
+import 'package:visibility_detector/visibility_detector.dart';
 
 import 'utils/test_mock_channel_handlers.dart';
 
@@ -77,6 +78,9 @@ void main() {
 
     // draw something
     await drawOnEditor(tester);
+
+    // visibility detector triggers error withour this
+    VisibilityDetectorController.instance.updateInterval = Duration.zero;
     await tester.pumpAndSettle();
     expect(getUndoBtn().onPressed, isNotNull,
         reason: 'Undo button should be enabled after first draw');