Authorization middleware, fixes to API and User PATCH

[kenpaicat]

This PR implements Role-Based Authorization middleware, where Role is stored in UserDTO encoded into JWT. It also implements PATCH endpoints required for promotion, and user edits. Fixes to API are cosmetic.

[kenpaicat]

Two (possibly) issues so far:

1. JWT needs to be regenerated when User is updated, because JWT is based on UserDTO. This is slightly weird. Need to read up on JWT regen or what to do in this case.

2. Because (1) we have annoyances in (already singletoned) tests. Current fix is to "relogin" after User PATCH, but this is wrong.

Currently this is how middleware is wrapped: Authentication(Authorization(Site)) and it is annoying.

More: https://stackoverflow.com/questions/43978021/update-change-roles-claim-or-any-other-claim-in-jwt

[codecov]

Codecov Report

Merging #87 (3832eed) into dev (c136f87) will decrease coverage by 0.08%.
Report is 13 commits behind head on dev.
The diff coverage is 45.71%.

❗ Current head 3832eed differs from pull request most recent head 71ed7ee. Consider uploading reports for the commit 71ed7ee to get more accurate results

@@            Coverage Diff             @@
##              dev      #87      +/-   ##
==========================================
- Coverage   48.12%   48.04%   -0.08%     
==========================================
  Files          16       18       +2     
  Lines         374      487     +113     
==========================================
+ Hits          180      234      +54     
- Misses        194      253      +59     

Files Changed	Coverage Δ
crates/laguna-backend-api/src/error/peer.rs	0.00% <ø> (ø)
crates/laguna-backend-api/src/error/torrent.rs	0.00% <0.00%> (ø)
crates/laguna-backend-api/src/login.rs	100.00% <ø> (ø)
crates/laguna-backend-api/src/misc.rs	0.00% <0.00%> (ø)
crates/laguna-backend-api/src/register.rs	100.00% <ø> (ø)
crates/laguna-backend-api/src/torrent.rs	0.00% <0.00%> (-6.25%)	⬇️
crates/laguna-backend-dto/src/login.rs	100.00% <ø> (ø)
crates/laguna-backend-dto/src/torrent.rs	0.00% <0.00%> (ø)
crates/laguna-backend-dto/src/validators/login.rs	85.00% <ø> (ø)
...rates/laguna-backend-middleware/src/auth_helper.rs	0.00% <0.00%> (ø)
... and 7 more

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[kenpaicat]

merged locally n pushed to dev