feat(custom-widgets): complete Custom JSX v2 (#6390)

apps/docs/src/components/ui/kbd.tsx

@@ -0,0 +1,20 @@
+import { cn } from "@/lib/utils";
+
+function Kbd({ className, ...props }: React.ComponentProps<"kbd">) {
+  return (
+    <kbd
+      data-slot="kbd"
+      className={cn(
+        "pointer-events-none inline-flex h-5 w-fit min-w-5 items-center justify-center gap-1 rounded-sm bg-muted px-1 font-sans text-xs font-medium text-muted-foreground select-none in-data-[slot=tooltip-content]:bg-background/20 in-data-[slot=tooltip-content]:text-background dark:in-data-[slot=tooltip-content]:bg-background/10 [&_svg:not([class*='size-'])]:size-3",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+function KbdGroup({ className, ...props }: React.ComponentProps<"div">) {
+  return <kbd data-slot="kbd-group" className={cn("inline-flex items-center gap-1", className)} {...props} />;
+}
+
+export { Kbd, KbdGroup };