Feature request: Admin customization of left sidebar nav

[aviannamiller]

Building on the question about display order and allowing list organization, I am curious how admin customization could be expanded here. Could there be a way for admins to "star/favorite" and "hide" modules to prioritize according to need and use (of course a relevant question for S, as well)?

Originally posted by @aviannamiller in #1041

What might it entail to allow for the left sidebar nav to have some capacity for admin customization? Also looping in @allanaaa here, but so far some ideas could be to allow for reordering, hiding, and starring/favoriting plugins to allow users to prioritize installed plugins according to needs. If any of this is possible to implement, could that then also be replicated for the S dashboard?

There is also a question here of where the customization would occur from, the sidebar itself and the plugins page being two possibilities. If it's directly on the sidebar, keyboard navigation issues, as discussed in #1035
, would be something to consider.