chore: adjust insets of some popup

frontend/app_flowy/lib/plugins/board/presentation/card/card.dart

@@ -85,6 +85,7 @@ class _BoardCardState extends State<BoardCard> {
             controller: popoverController,
             triggerActions: PopoverTriggerFlags.none,
             constraints: BoxConstraints.loose(const Size(140, 200)),
+            margin: const EdgeInsets.all(6),
             direction: PopoverDirection.rightWithCenterAligned,
             popupBuilder: (popoverContext) => _handlePopoverBuilder(
               context,

frontend/app_flowy/lib/plugins/grid/presentation/widgets/row/grid_row.dart

@@ -109,6 +109,7 @@ class _RowLeadingState extends State<_RowLeading> {
       triggerActions: PopoverTriggerFlags.none,
       constraints: BoxConstraints.loose(const Size(140, 200)),
       direction: PopoverDirection.rightWithCenterAligned,
+      margin: const EdgeInsets.all(6),
       popupBuilder: (BuildContext popoverContext) {
         return GridRowActionSheet(
             rowData: context.read<RowBloc>().state.rowInfo);

frontend/app_flowy/lib/plugins/grid/presentation/widgets/toolbar/grid_toolbar.dart

@@ -55,6 +55,7 @@ class _SettingButton extends StatelessWidget {
     return AppFlowyPopover(
       constraints: BoxConstraints.loose(const Size(260, 400)),
       offset: const Offset(0, 10),
+      margin: const EdgeInsets.all(6),
       child: FlowyIconButton(
         width: 22,
         hoverColor: theme.hover,

frontend/app_flowy/packages/flowy_infra_ui/lib/src/flowy_overlay/appflowy_popover.dart

@@ -30,7 +30,7 @@ class AppFlowyPopover extends StatelessWidget {
     this.offset,
     this.controller,
     this.asBarrier = false,
-    this.margin = const EdgeInsets.all(6),
+    this.margin = const EdgeInsets.all(12),
   }) : super(key: key);
 
   @override