feat: style missing keywords

[luissolanodev]

Because of semantic concerns, style from config should be applied to all
kinds of keywords separated by different highlight groups by Treesitter

[luissolanodev]

Hey! @pocco81, this is what I was talking about in #36, to apply styling to all keywords. I left the colors the same, just added style, we can start with this and then figure out which colours look nicer, what do you think?

[pocco81]

Ooh ok ok now I understand. Are those all the keywords? Do have a list or something I could see? :)

[luissolanodev]

Hmmmmm obviously the list is different for each programming language, and I don't think there's a list of all the available highlights that correspond to keywords... but I looked at this list and all the keywords are highlighted accordingly, so it should be equivalent for other languages as well.

Edit: I added TSKeywordOperator for the new reserved keyword and TSBoolean for true and false reserved keywords.

[pocco81]

Great, I'll merge it :)