Resolve "Bug(Parser): declarations can't be initiated with `plus`, `max` and `imax`" ✨️

Closes #80 🐔️👍️
Approved-by: belazy <aarthuur01@gmail.com>
Approved-by: aalbert <augustin.albert@bleu-azure.fr>

🦀️🍰🦀️🍰🦀️🍰

* fix(parser): declarations can't be initiated with plus, max and imax