Add id, className or styles prop for SlashCommandRoot to target floating div [Editor]

[juanmag4]

Goals

1. Add id, className or styles prop for SlashCommandRoot to target floating div

Background

I need a way to add z-index to the slash commands because the editor, in my particular case, is inside a MUI dialog with a z-index of 1300, and the slash command is located behind it without any options to push it above. (sorry for my bad english)

Proposal

I think adding an id or a className prop would give us some customization options for the slash container. If you find this useful I can create an PR for it. Regards.