refactor: add cursor-pointer to button base and refine prompt suggestion styles

Move cursor-pointer into the shared button variant so all buttons get it
by default. Switch prompt suggestions to ghost variant with hover:bg-secondary
for a subtler visual treatment.

Co-authored-by: Cursor <cursoragent@cursor.com>

Author: batmn-dev

components/ui/button.tsx

@@ -6,7 +6,7 @@ import { cva, type VariantProps } from "class-variance-authority"
 import { cn } from "@/lib/utils"
 
 const buttonVariants = cva(
-  "inline-flex items-center justify-center gap-2 whitespace-nowrap rounded-lg text-sm font-medium disabled:pointer-events-none disabled:opacity-50 [&_svg]:pointer-events-none [&_svg:not([class*='size-'])]:size-4 shrink-0 [&_svg]:shrink-0 outline-none focus-visible:border-ring focus-visible:ring-ring/50 focus-visible:ring-[3px] aria-invalid:ring-destructive/20 dark:aria-invalid:ring-destructive/40 aria-invalid:border-destructive",
+  "inline-flex cursor-pointer items-center justify-center gap-2 whitespace-nowrap rounded-lg text-sm font-medium disabled:pointer-events-none disabled:opacity-50 [&_svg]:pointer-events-none [&_svg:not([class*='size-'])]:size-4 shrink-0 [&_svg]:shrink-0 outline-none focus-visible:border-ring focus-visible:ring-ring/50 focus-visible:ring-[3px] aria-invalid:ring-destructive/20 dark:aria-invalid:ring-destructive/40 aria-invalid:border-destructive",
   {
     variants: {
       variant: {

components/ui/prompt-suggestion.tsx

@@ -39,11 +39,11 @@ function PromptSuggestion({
   if (!content) {
     return (
       <Button
-        variant={variant || "secondary"}
+        variant={variant || "ghost"}
         size={size || "sm"}
         className={cn(
-          "w-full cursor-pointer justify-start rounded-xl py-2",
-          "hover:bg-accent",
+          "w-full justify-start rounded-xl py-2",
+          "hover:bg-secondary",
           className
         )}
         {...props}
@@ -60,11 +60,11 @@ function PromptSuggestion({
 
   return (
     <Button
-      variant={variant || "secondary"}
+      variant={variant || "ghost"}
       size={size || "sm"}
       className={cn(
-        "w-full cursor-pointer justify-start gap-0 rounded-xl py-2",
-        "hover:bg-accent",
+        "w-full justify-start gap-0 rounded-xl py-2",
+        "hover:bg-secondary",
         className
       )}
       {...props}