Fix issues with Oneshot disabling

[drashna]

Description

found an issue where when oneshots was disabled (at runtime via the keycodes, not by the define), it would cause incorrect cleanup of keys. namely, noticed that it immediately released mousekeys, even when held down.

Also, completely disables the oneshot behavior, so that tap toggling doesn't work. OSM should work exactly as modifier keys, and OSL should work as MO, when disabled.

Types of Changes

• Core
• Bugfix
• Enhancement/optimization

Issues Fixed or Closed by This PR

• found by me

Checklist

• My code follows the code style of this project: C, Python
• I have read the PR Checklist document and have made the appropriate changes.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• I have tested the changes and verified that they work and don't break anything (as well as I can manage).