Proper-forms

What's Changed
* Fix bug with getting multiple input values
* Bump ipython from 8.8.0 to 8.10.0 by dependabot in https://github.com/jpsca/proper-forms/pull/4
* Bump pymdown-extensions from 9.9.2 to 10.0 by dependabot in https://github.com/jpsca/proper-forms/pull/5
* Bump requests from 2.28.2 to 2.31.0 by dependabot in https://github.com/jpsca/proper-forms/pull/6
* Bump urllib3 from 1.26.14 to 1.26.18 by dependabot in https://github.com/jpsca/proper-forms/pull/10

**Full Changelog**: https://github.com/jpsca/proper-forms/compare/0.6...0.8

**Full Changelog**: https://github.com/jpsca/proper-forms/compare/v0.5...0.6

Add `.as_richtext()` to render a Text field as a Trix editor.

Remove formsets