Add support for other type modifiers

[leo-aa88]

Currently, type modifiers such as giga and thicc are not implemented. Current list of keywords which are not implemented can be found here: https://github.com/Brainrotlang/brainrot/blob/main/README.md

[dominik-air]

Yo, lemme cook

[leo-aa88]

Yo, lemme cook

Feel free to grind on this one, no cap

[dominik-air]

@araujo88 can we reduce the scope to just the giga modifier? I think someone new could potentially pick up the thicc modifier later on and learn the code base this way

[SIGMazer]

@araujo88 can we reduce the scope to just the giga modifier? I think someone new could potentially pick up the thicc modifier later on and learn the code base this way

i mad sub issue for giga