feat: support named themes

[caarlos0]

Initial implementation, let me know what you think!

closes #78 refs https://github.com/catppuccin/catppuccin/issues/1711

Thanks to:

• @jolheiser catppuccin colors
• @dlvhdr tokyo night theme

[maaslalani]

@caarlos0 do you have git-lfs installed?

[maaslalani]

I see that the GIFs are added directly to the git repo, without uploading to git-lfs

[caarlos0]

oh, I dont, will install @maaslalani

[aymanbagabas]

@caarlos0 you might need to rebase this pr

[caarlos0]

@aymanbagabas wont the squash and merge do that?

[caarlos0]

what do you think: do we add a vhs themes command, or keep it in the man page, or both?

[jolheiser]

what do you think: do we add a vhs themes command, or keep it in the man page, or both?

Maybe both? Alternatively, man pages and a markdown file?

~~As well, maybe even in a follow up, could the list be generated in go code so that vhs can verify tape files include a valid theme (if not json)?~~ Nevermind, I see it does already.

[caarlos0]

Maybe both? Alternatively, man pages and a markdown file?

yup, done!

[maaslalani]

Looking really good @caarlos0, thank you for this!

[maaslalani]

Looking good @caarlos0, will merge this soon!

[maaslalani]

Thanks so much @caarlos0, incredible work. Thanks for baring with me with the code review ❤️

[caarlos0]

was very fun to work on it, thanks for reviewing & merging @maaslalani 💙