OK, so evrything was a fucknig mess, it still kinda is, AI helped
me to clean my own mess, it really sucks but the fucking debugger
and address sanitizer were not working, also, there were small
small errors so no big deal but still, a bit sad, also changed a
the way i cast from uint8_t to double and int in the tests, may
change that i guess, verything else i might say is good :)
So added a little test that just adds 3 ints to an arena, nothing much
but the basics work, also changed arena_push because it only pushed and
didn't returned a ponter (wich is fucking useless) so also fixed that,
everything seems fine now, need more tests.
# Tipos:
# feat, fix, refactor, docs, style, test, chore
