refactor: fix some typos

[roottool]

Overview

This PR fixes some typos. I found a few typos by VS Code typos extension and https://github.com/crate-ci/typos.

[Zamiell]

From the peanut gallery:
I'd recommend using CSpell to catch ALL the typos instead of just the most common ones!
It's kind of a tradeoff because you will get false positives, but you can ignore them in the same way that you do in Microsoft Word, i.e. by right clicking the squiggly word -->add to dictionary.

[ssalbdivad]

@roottool Thanks so much! Relieved there weren't more 😅

@Zamiell I used to use it as well but it was too much overhead maintaining the custom word list (at least for now, would consider reintegrating in the future).