Description of the new feature/enhancement (with images if possible)

Basically, it should have the 3,000+ icons and glyphs that are added by the scripts over at nerd-fonts so that those of us generating or using tools like /devblackops/Terminal-Icons and /mnurzia/better-ls or /nick-bull/spaceship-prompt-nerdified can use Cascadia 😁

Proposed technical implementation details (optional)

Ideally, update the font with their patcher and distribute it here. Alternatively address ryanoasis/nerd-fonts/issues/373 and help everyone understand how they can make it happen without getting in trouble...