Update CESE (0.14.0), Add Gutter & Folding Settings

[thecoolwinter]

Description

Updates CodeEditSourceEditor to 0.14.0, and subsequently CodeEditTextView to 0.11.6. Adds two new settings:

• Show Gutter - toggles the visibility of the entire gutter in the editor.
• Show Code Folding Ribbon - toggles the visibility of the folding ribbon.

Related Issues

• should fix 🐞 Line numbers misaligned #2073
• nearly closes ✨ Setting to toggle line number visibility #1020, that issue needs slightly more granularity in the setting to close.

Checklist

• I read and understood the contributing guide as well as the code of conduct
• The issues this PR addresses are related to each other
• My changes generate no new warnings
• My code builds and runs on my machine
• My changes are all related to the related issue above
• I documented my code

Screenshots

settings-demo.mov