Add ability to minimize Slices

Feature Idea (one per thread):

Ability to minimize a slice zone in Documents.

Issue that it solves:

When there is a page with a lot of slices it can become hard to parse through all the slices

Screenshot or video of the issue (if applicable):

Current:

Mock up:

Hey, @orcecosmetics welcome to the Community, and thanks for the feedback. This would be a great thing to have in the repository's UI. It would certainly help to keep things tidier. Especially if you work with a lot of Slices at the same time.

We'll add it to the product board as an open feature request!