feat: add Revolut payment link support alongside IBAN

- Add NoteBox component for displaying warning messages with icon
- Add Revolut profile name field to user settings schema
- Update UserSettingsForm to support payment instruction selection (disabled/IBAN/Revolut)
- Add Croatian and English translations for new payment options
- Reserve fields for future per-instruction enable/disable functionality

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

app/ui/NoteBox.tsx

@@ -0,0 +1,7 @@
+import { FC, ReactNode } from "react";
+
+export const NoteBox: FC<{ children: ReactNode, className?: string }> = ({ children, className }) =>
+    <div className={`alert max-w-md flex flex-row items-start gap-[.8rem] ml-1 ${className}`}>
+        <span className="w-6 h-6 text-xl">⚠️</span>
+        <span className="text-left">{children}</span>
+    </div>