Flutter upgrade

lib/ui/app/app_scrollbar.dart

@@ -41,6 +41,7 @@ class _AppScrollbarState extends State<AppScrollbar> {
           child: widget.child,
           controller: widget.controller,
           isAlwaysShown: isDesktop(context) && _isHovered,
+          showTrackOnHover: true,
         ),
       );
     }

lib/ui/app/tables/app_paginated_data_table.dart

@@ -478,6 +478,7 @@ class AppPaginatedDataTableState extends State<AppPaginatedDataTable> {
               ),
                */
               Scrollbar(
+                showTrackOnHover: true,
                 controller: _controller,
                 child: SingleChildScrollView(
                   controller: _controller,