For many actions in the Data Model Editor, it would be natural to use keyboard controls. This is a placeholder ticket for us to explore this possibility and add keyboard controls when appropriate.

Examples:

• deleting selection (3 - collection, field, relationship)
• escaping selection (3 - collection, field, relationship)
• committing a change (such as rename) with an enter (2 inputs on collection sidebar, 1 on field sidebar, 1 on relationship sidebar)
• undo & redo (2)