chore: correct typos in code, comments and documentation

[dexzh]

Checklist

• The title of my PR follows conventional commits
• I have updated the documentation (README.md, comments, src/manpage.rs and/or src/options.rs if applicable)
• I have added unit tests
• I have added integration tests
• I have linked all related issues or PRs

Description of the changes

Note: codecov runs on the PR on this repo, but feel free to ignore it.

[LoricAndre]

I'm curious: why did you open this ? It doesn't seem like you plan on actually contributing anything else, is it just for the contributor status ?
I'm not saying I won't merge it, but I'm still very curious as to what motivates you

[dexzh]

I noticed a typo in the sk-tmux script warning while using it. Since I was already there, I decided to run a tool called typos to find and fix any others in one go. Just wanted to make the project a bit cleaner since I find it useful

[LoricAndre]

Thanks for answering me, we'll merge this quickly

done

[codecov]

Codecov Report

❌ Patch coverage is 87.50000% with 3 lines in your changes missing coverage. Please review.
✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
src/lib.rs	70.00%	3 Missing ⚠️

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