[WIP] Add support for checking the password against HIBP for leaks

[nitnelave]

See #39.

[nitnelave]

We can do two things:

• either merge this PR (roughly) as-is, after some technical reviews but not iterating on the frontend, then you create a PR to improve the frontend
• or you create a PR that targets this branch with the frontend changes, so we merge a clean frontend directly.

WDYT?

Btw, to test this you'll need a HIBP API key.

[pixelrazor]

We can do two things:

• either merge this PR (roughly) as-is, after some technical reviews but not iterating on the frontend, then you create a PR to improve the frontend
• or you create a PR that targets this branch with the frontend changes, so we merge a clean frontend directly.

WDYT?

Btw, to test this you'll need a HIBP API key.

Let me get some time to play with it in the current state and i'll get back with an opnion on that

[codecov]

Codecov Report

Merging #526 (278fb16) into main (86b2b51) will decrease coverage by 1.28%.
The diff coverage is 0.00%.

❗ Current head 278fb16 differs from pull request most recent head 8c052c0. Consider uploading reports for the commit 8c052c0 to get more accurate results

@@            Coverage Diff             @@
##             main     #526      +/-   ##
==========================================
- Coverage   71.01%   69.73%   -1.28%     
==========================================
  Files          40       40              
  Lines        6799     6923     +124     
==========================================
  Hits         4828     4828              
- Misses       1971     2095     +124