Feature/Add Thena.ai svg

[ankit-saxena]

📝 About your SVG:

• Title: Thena
• Category: AI Customer Support
• Website URL: https://www.thena.ai
• Description: Customer Support and Success for Modern B2B Teams

📷 Screenshots:

✨ Add screenshots of the logo.

✅ Checklist

• [x] I have permission to use this logo.
• [x] The .svg file is optimized for web use.
• [x] The .svg size is less than 20kb.