pc/modals: Disable submit buttons on when Formik isSubmitting

[ssangervasi]

Closes #2219

Code Changes

• Use isSubmitting on all of these forms to prevent repeat clicks
• Remove the isLoading loading state which is redundant and not implemented correctly.

Steps to Confirm

• See ticket. Backend has to require identity verification.
• Check the browser network console to see there is only one /verify call per submit.

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

Description Of Changes

I couldn't actually reproduce the error banner from the ticket - repeat clicks would send multiple requests but they would respond 200. I tried with and without require_manual_request_approval enabled in fides.test_env.toml.

But either way there's no reason to submit multiple. These modals should all have smart submit buttons.

My screen recorder shows my fast clicks as that animated circle:
https://user-images.githubusercontent.com/2236777/214980028-3bc9b69d-f1ec-403a-8683-de30d783f412.mp4

Also added the loading state:

[codecov]

Codecov Report

Base: 88.55% // Head: 88.55% // No change to project coverage 👍

Coverage data is based on head (29de6ed) compared to base (6a35107).
Patch has no changes to coverable lines.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2401   +/-   ##
=======================================
  Coverage   88.55%   88.55%           
=======================================
  Files         327      327           
  Lines       15714    15714           
  Branches     4348     4348           
=======================================
  Hits        13915    13915           
  Misses       1644     1644           
  Partials      155      155           

Help us with your feedback. Take ten seconds to tell us how you rate us. Have a feature suggestion? Share it here.

☔ View full report at Codecov.
📢 Do you have feedback about the report comment? Let us know in this issue.