Revert "opt scroll view"

This reverts commit f9441db232.

lib/common/widgets/gesture/vertical_drag_gesture_recognizer.dart

@@ -1,39 +0,0 @@
-import 'package:flutter/gestures.dart'
-    show VerticalDragGestureRecognizer, PointerEvent, RecognizerCallback;
-
-typedef IsDyAllowed = bool Function(double dy);
-
-class CustomVerticalDragGestureRecognizer
-    extends VerticalDragGestureRecognizer {
-  CustomVerticalDragGestureRecognizer({
-    super.debugOwner,
-    super.supportedDevices,
-    super.allowedButtonsFilter,
-  });
-
-  IsDyAllowed? isDyAllowed;
-
-  bool _isDyAllowed = true;
-
-  @override
-  bool isPointerAllowed(PointerEvent event) {
-    _isDyAllowed = isDyAllowed?.call(event.localPosition.dy) ?? true;
-    return super.isPointerAllowed(event);
-  }
-
-  @override
-  T? invokeCallback<T>(
-    String name,
-    RecognizerCallback<T> callback, {
-    String Function()? debugReport,
-  }) {
-    if (!_isDyAllowed) return null;
-    return super.invokeCallback(name, callback, debugReport: debugReport);
-  }
-
-  @override
-  void dispose() {
-    isDyAllowed = null;
-    super.dispose();
-  }
-}