📦 feat(git): add radicle package

- add `radicle` package
- add `radicle-tui` package
- create fish alias for `rad-tui`
- add radicle config template `radicle.nix`
- add `.gitconfig.radicle` to `.gitconfig`
- create directory for radicle projects with its `.gitconfig.radicle`

home/.config/fish/config.fish

@@ -3,6 +3,7 @@ if status is-interactive
 end
 
 alias cl="clear"
+alias rad="rad-tui"
 alias lgit="lazygit"
 alias ldocker="lazydocker"
 alias conf="z ~/.config"