🚀 Feature: Add 're' as default useless word

[JoshuaKGoldberg]

Feature Request Checklist

• I have pulled the latest main branch of the repository.
• I have searched for related issues and found none that matched my issue.

Overview

s is a default useless word because it can be left over after normalizing possessives: e.g. "id's" -> "id s" -> ["id", "s"]. 're is also a relevant leftover after apostrophe removal.

Additional Info

ℹ

[JoshuaKGoldberg]

Fixed by #723.