feat: update layout

src/components/Titlebar/index.tsx

@@ -2,15 +2,18 @@ import { cn } from '@/lib/utils'
 
 export function Titlebar({
   children,
-  className
+  className,
+  hideBottomBorder = false
 }: {
   children?: React.ReactNode
   className?: string
+  hideBottomBorder?: boolean
 }) {
   return (
     <div
       className={cn(
         'sticky top-0 w-full h-12 z-40 bg-background [&_svg]:size-5 [&_svg]:shrink-0 select-none',
+        !hideBottomBorder && 'border-b',
         className
       )}
     >