feat: update button component to use Slot.Root and add new size variants; refactor textarea styles for improved accessibility; implement remote app connection logic in new page

src/components/ui/button.tsx

@@ -1,6 +1,6 @@
 import * as React from "react"
-import { Slot } from "@radix-ui/react-slot"
 import { cva, type VariantProps } from "class-variance-authority"
+import { Slot } from "radix-ui"
 
 import { cn } from "@/lib/utils"
 
@@ -22,9 +22,11 @@ const buttonVariants = cva(
       },
       size: {
         default: "h-9 px-4 py-2 has-[>svg]:px-3",
+        xs: "h-6 gap-1 rounded-md px-2 text-xs has-[>svg]:px-1.5 [&_svg:not([class*='size-'])]:size-3",
         sm: "h-8 rounded-md gap-1.5 px-3 has-[>svg]:px-2.5",
         lg: "h-10 rounded-md px-6 has-[>svg]:px-4",
         icon: "size-9",
+        "icon-xs": "size-6 rounded-md [&_svg:not([class*='size-'])]:size-3",
         "icon-sm": "size-8",
         "icon-lg": "size-10",
       },
@@ -46,7 +48,7 @@ function Button({
   VariantProps<typeof buttonVariants> & {
     asChild?: boolean
   }) {
-  const Comp = asChild ? Slot : "button"
+  const Comp = asChild ? Slot.Root : "button"
 
   return (
     <Comp