[JN-1608][member's choice] editable sidebars

[connorlbark]

DESCRIPTION (include screenshots, and mobile screenshots for participant UX)

Adds ability to customize what you see on your sidebar. Could be cool to also be able to drag n drop reorder but that's definitely a lot harder (but possible!)

Right now, this is just stored in local storage. However, I could imagine a world where this is sent to the backend as part of the user's settings just as a json blob that gets refreshed upon logging in.

TO TEST: (simple manual steps for confirming core behavior -- used for pre-release checks)

• populate at least 2 studies
• edit sidebar (i.e. hide some stuff) in one study
• go to another study, observe stuff isn't hidden then
• hide some other stuff in the other study
• switch between them and observe that state is study-specific
• refresh, exit chrome, etc., ensure it remembers state

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[devonbush]

This is super cool. And I think we might be able to use this functionality it in other portions of our app too. But given that Juniper is going to be on a bit of a feature freeze soon, I'm leaning against merging this since it could lead to some user confusion where their screen doesn't match the documentation, or Whitney is confused why things look different in one study versus another (especially considering that menu items may also be hidden for permissions reasons)

I'll be curious to get Whitney and Parker's take -- if they say they want it, I'm on board. Otherwise maybe we we icebox this PR until the next time we add a new item to the sidebar?