Polish Admin UI header & navigation

[NevilleS]

Closes #2885

Code Changes

• Import updated top nav & side nav components from fidesui (see https://github.com/ethyca/fidesui/pull/40)
• Update header:
  • Smaller height, vertically aligned, tighter padding
  • Statically import Fides logo (bit faster load/cache!)
  • Add help button
• Update top nav height, vertically aligned, tighter padding

Steps to Confirm

• Run `nox -s "fides_env(test)"
• Compare before/after screens to master designs

Page	Before	After
Home
Privacy Requests

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

Polish pass on the header & navigation ✨

[cypress]

Passing run #920 ↗︎

0	3	0	0	0
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Details:

Merge c567894 into c47699c...
Project: fides	Commit: 4722683ced ℹ️
Status: Passed	Duration: 00:51 💡
Started: Mar 22, 2023 4:02 PM	Ended: Mar 22, 2023 4:03 PM

_{This comment has been generated by cypress-bot as a result of this project's GitHub integration settings.}

[codecov]

Codecov Report

Patch and project coverage have no change.

Comparison is base (c47699c) 86.61% compared to head (c567894) 86.61%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2897   +/-   ##
=======================================
  Coverage   86.61%   86.61%           
=======================================
  Files         298      298           
  Lines       16783    16783           
  Branches     2147     2147           
=======================================
  Hits        14537    14537           
  Misses       1835     1835           
  Partials      411      411           

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[NevilleS]

I got a design review for this from the design team and they gave the 👍 as-is, so this is ready to ship!