v0.9.5 — bottom padding under the action buttons

Bottom padding under the action buttons.

• The right-aligned action buttons are top-aligned inside the bar with 4px of padding below, so the archive/delete group no longer touches the toolbar border.

补齐按钮栏底部间距。

• 右侧操作按钮改为顶部对齐，按钮下方保留 4px padding，归档/删除按钮组不再贴住按钮栏下边框。