refactor: remove electron-related code

src/components/Titlebar/index.tsx

@@ -0,0 +1,23 @@
+import { cn } from '@/lib/utils'
+
+export function Titlebar({
+  children,
+  className,
+  visible = true
+}: {
+  children?: React.ReactNode
+  className?: string
+  visible?: boolean
+}) {
+  return (
+    <div
+      className={cn(
+        'absolute top-0 w-full h-9 max-sm:h-11 z-50 bg-background/80 backdrop-blur-md flex items-center font-semibold gap-1 px-2 duration-700 transition-transform',
+        visible ? '' : '-translate-y-full',
+        className
+      )}
+    >
+      {children}
+    </div>
+  )
+}