[Feature] Separate Github Copilot from Supabase

[ZorinFoss]

Feature request

Describe the solution you'd like

Please separate github copilot from supabase extension. This will give users options to use what AI Assistant they like more.

Describe alternatives you've considered

Create extension group which we can install supabase + github copilot

Additional context

Add any other context or screenshots about the feature request here.