[flutter]: force ScrollbarListStack child as large as parent

app_flowy/lib/workspace/presentation/stack_page/trash/trash_page.dart

@@ -82,6 +82,7 @@ class _TrashStackPageState extends State<TrashStackPage> {
         barSize: barSize,
         child: StyledSingleChildScrollView(
           controller: ScrollController(),
+          barSize: barSize,
           axis: Axis.horizontal,
           child: SizedBox(
             width: TrashSizes.totalWidth,

app_flowy/lib/workspace/presentation/stack_page/trash/widget/sizes.dart

@@ -5,6 +5,5 @@ class TrashSizes {
   static double get lashModifyWidth => 230 * scale;
   static double get createTimeWidth => 230 * scale;
   static double get padding => 100 * scale;
-  static double get totalWidth =>
-      TrashSizes.fileNameWidth + TrashSizes.lashModifyWidth + TrashSizes.createTimeWidth + TrashSizes.padding;
+  static double get totalWidth => TrashSizes.fileNameWidth + TrashSizes.lashModifyWidth + TrashSizes.createTimeWidth;
 }

app_flowy/packages/flowy_infra_ui/lib/style_widget/scrolling/styled_scrollview.dart

@@ -10,6 +10,7 @@ class StyledSingleChildScrollView extends StatefulWidget {
   final Color? handleColor;
   final ScrollController? controller;
   final EdgeInsets? scrollbarPadding;
+  final double barSize;
 
   final Widget? child;
 
@@ -22,6 +23,7 @@ class StyledSingleChildScrollView extends StatefulWidget {
     this.handleColor,
     this.controller,
     this.scrollbarPadding,
+    this.barSize = 6,
   }) : super(key: key);
 
   @override
@@ -58,14 +60,16 @@ class _StyledSingleChildScrollViewState extends State<StyledSingleChildScrollVie
       axis: widget.axis,
       controller: scrollController,
       scrollbarPadding: widget.scrollbarPadding,
-      barSize: 12,
+      barSize: widget.barSize,
       trackColor: widget.trackColor,
       handleColor: widget.handleColor,
-      child: SingleChildScrollView(
-        scrollDirection: widget.axis,
-        physics: StyledScrollPhysics(),
-        controller: scrollController,
-        child: widget.child,
+      child: SizedBox.expand(
+        child: SingleChildScrollView(
+          scrollDirection: widget.axis,
+          physics: StyledScrollPhysics(),
+          controller: scrollController,
+          child: widget.child,
+        ),
       ),
     );
   }