fix: remove options title hover and correct margins

[JoshuaKGoldberg]

Overview

Removes hovering from menu options, so it's only workable for clicks.

Tweaks the hover effect (and makes it used, now!) so it's > ... < before+after pseudo elements.

Tweaks options padding to fix #296 specifically.

PR Checklist

• [x] Fixes #186; fixes #296
• [x] I have run this code to verify it works
• [x] This PR includes unit tests for the code change