Feature: allow to send WhatsApp Contact message
New Features
Added WhatsApp Contact Message support
- 📱 New (WhatsApp) Contact message type in send message node
- 👥 Send contact cards directly in bot conversations
- 💾 Recipients can save contacts to their phone with one click
- 📋 Required fields: name + first_name (or last_name)
- 📍 Location: Send Message Node → Others → (WhatsApp) Contact
- 🎯 Displays formatted contact name, profile arrow, and save option
- ⏰ Shows message timestamp for better context
