Custom global menu dropdown for favorited views
### Problem to solve
Can't quickly navigate to an area within gitlab
### Further details
Navigate quickly to a deep area of gitlab with minimal clicks. Users will save time and frustration attempting to get to a view that takes several clicks to get to.
### Proposal
Custom navigation drop down menu in the topbar for favorited views.
### What does success look like, and how can we measure that?
(If no way to measure success, link to an issue that will implement a way to measure this)
Each view will have a star/favorite toggle that when toggled on, will add the view to a custom dropdown menu in the topbar, allowing the user to use on click to navigate to that view from anywhere within Gitlab.
### Links / references
issue