fix(frontend): ThoughtForm — safe onSuccess?.() on cancel, dedupe reply textarea classes

thoughts-frontend/components/thought-form.tsx

@@ -77,7 +77,7 @@ export function ThoughtForm({ replyToId, onSuccess, card = !replyToId }: Thought
               <FormControl>
                 <Textarea
                   placeholder={replyToId ? "Post your reply..." : "What's on your mind?"}
-                  className={`resize-none ${replyToId ? "bg-white glass-effect glossy-effect bottom shadow-fa-sm" : ""}`}
+                  className={`resize-none ${replyToId ? "bg-white shadow-fa-sm" : ""}`}
                   {...field}
                 />
               </FormControl>
@@ -116,7 +116,7 @@ export function ThoughtForm({ replyToId, onSuccess, card = !replyToId }: Thought
             />
           )}
           {replyToId && (
-            <Button type="button" variant="ghost" onClick={onSuccess}>
+            <Button type="button" variant="ghost" onClick={() => onSuccess?.()}>
               Cancel
             </Button>
           )}