feat(form-element): Add modifier to reduce vertical space (#3066)

* feat(form-element): Add tightened modifier

* Add snapshots and documentation

* Add snapshots and documentation

* Fix path

* Update snapshots

* Lint

* Make sure examples have unique IDs

* 😢

* Update record detail

* Update AT on edit button

* feat(form-element): Add tests

* Remove unused props

* Update example to use stacked checkbox variant

Author: brandonferrua