feat: JWT apiAuthentication UI integration

[jescalada]

Fixes #1091.

This PR adds a Settings page that allows configuring the JWT token to authenticate UI requests to the API:

Previously, requests were bypassing the JWT check if they came from an authenticated user, and being completely blocked when not logged in.

This PR also improves the error messages shown when JWT authentication fails:

Missing token

Bad JWT format

Expired JWT

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 82.83%. Comparing base (d9d8b18) to head (551e237).
⚠️ Report is 23 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1096      +/-   ##
==========================================
+ Coverage   82.80%   82.83%   +0.02%     
==========================================
  Files          66       66              
  Lines        2786     2784       -2     
  Branches      334      334              
==========================================
- Hits         2307     2306       -1     
+ Misses        432      431       -1     
  Partials       47       47              

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[JamieSlome]

@jescalada - thanks for the PR ❤️

Perhaps it makes sense to display the error message outside of the table in a pop-up? Open until closed by the user?

[jescalada]

I modified this so that it uses one of the predefined error components (and got the message out of the tabs box):

There's still an issue with a non-descriptive error when JWT is enabled but the config is missing.

[jescalada]

I've tried to find better-looking error displays (such as custom-styled Snackbars, and other components), but it seems MUI v4 doesn't support some of the best ones.

In later versions of MUI we can use these Alert components or combine them with Snackbars to make it look better.

There's this issue for upgrading MUI to v5 #1023 which I'll take a look at soon. It might be worth modernizing the frontend a bit once the dependency upgrades are done. (Note: Upgrading directly to v7 is not possible as each new major version introduces various breaking changes - plus the automatic migration tools only go up one major version at a time)

[dcoric]

This looks great! Thanks for putting this together. 🚀

I've left a few small nitpicks for your consideration. The main one is just removing the console.log from getAxiosConfig to keep our output clean.

Once that's sorted, this is good to go!