add missing background color (#5789)

Author: sharma01ketan

web/core/components/workspace-notifications/sidebar/header/options/menu-option/root.tsx

@@ -71,7 +71,7 @@ export const NotificationHeaderMenuOption = observer(() => {
   return (
     <PopoverMenu
       data={popoverMenuOptions}
-      buttonClassName="flex-shrink-0 w-5 h-5 flex justify-center items-center overflow-hidden cursor-pointer transition-all hover:bg-custom-background-80 rounded-sm outline-none"
+      buttonClassName="flex-shrink-0 w-5 h-5 flex justify-center items-center overflow-hidden cursor-pointer transition-all hover:bg-custom-background-80 bg-custom-background-100 rounded-sm outline-none"
       keyExtractor={(item: TPopoverMenuOptions) => item.key}
       panelClassName="p-0 py-2 rounded-md border border-custom-border-200 bg-custom-background-100 space-y-1"
       render={(item: TPopoverMenuOptions) => <NotificationMenuOptionItem {...item} />}