Allow side nav bar to take children elements

[allisonking]

Closes https://github.com/ethyca/fidesplus/issues/737

Code Changes

• Allow NavConfigRoute to itself also take NavConfigRoute as one of its props. This allows infinite nesting of side navigation menus (I doubt we'll go beyond 2 or even 3, but you never know!)
• Refactor configureNavRoute to be recursive so that it can handle the nesting menus
• Refactor NavSideBar to also be recursive so it can handle nesting menus
• Restore cypress component tests. Parts of this got lost during the unified fides effort. Component tests are really great for testing out just one component and passing it data that our app doesn't (for instance, we can have the component test test out 3 level nesting, while our app currently only does 2 level nesting). They also seem to be way faster than a full cypress test

Steps to Confirm

• Run the fidesplus backend and npm run dev the admin ui
• You should now see "Privacy notices" nested under "Consent"
• You can also run cypress component testing via npm run cy:open then clicking on "Component testing" when it gives you a choice. This lets you see this functionality tested to beyond just one level such as:

Pre-Merge Checklist

• All CI Pipelines Succeeded
• Documentation:
  • documentation complete, PR opened in fidesdocs
  • documentation issue created in fidesdocs
• Issue Requirements are Met
• Relevant Follow-Up Issues Created
• Update CHANGELOG.md
• For API changes, the Postman collection has been updated

Description Of Changes

[cypress]

Passing run #1464 ↗︎

0	3	0	0	0
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Details:

Merge 928444f into 45e7ab4...
Project: fides	Commit: 3ec66e3819 ℹ️
Status: Passed	Duration: 00:36 💡
Started: Apr 20, 2023 5:15 PM	Ended: Apr 20, 2023 5:15 PM

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[TheAndrewJackson]

Nice work! The component testing in cypress looks nice