Add descriptions to missing element selector aspects

[Fishbowler]

Proposed changes

Adds the missing 'enabled' description, along with a couple of others.

Also adds unit tests for the descriptions.

Testing

• Unit tests
• ./maestro test

Before: ║ ✅ Assert that "Form Test" is visible
After: ║ ✅ Assert that "Form Test", disabled is not visible

Issues fixed

Fixes #2107