Investigate form display modes for content and media edit forms

[rlnorthcutt]

I tried to get form display modes working for some of the content types using layout builder, but it didn't work. It slightly changed the form css, but didn't create multiple columns.

The UX for creating/editing content/media is very boring and doesn't flow well - its just a list of fields. Ideally, we would be able to craft more useful and compact (less scrolling) edit forms that are as streamlined as possible and give us the framework to quickly modify/alter edit forms as needed. https://www.srijan.net/blog/how-to-display-a-custom-form-mode-in-drupal-8

I found this article, that says we may need some custom code to get form display modes to work, but its a year old... I hope we have made more progress in core for this.

My expectation is that we need someone to do some research on the issue, talk to the DAT and Lightning teams, and come up with a solution. Once we have that figured out, we can create issues to rework the edit forms.

[saltednut]

I believe it is set to always use the default form mode? Not surprised additional form modes aren't yet supported.