Migrate PasswordResetHandler endpoints to RTK Query

[mwtrew]

Moves PasswordResetHandler's endpoints to the users slice, which allows us to use that for error handling instead of generalErrors.

[codecov]

Codecov Report

❌ Patch coverage is 92.30769% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 41.59%. Comparing base (13187ee) to head (e5f97fb).
⚠️ Report is 31 commits behind head on main.

Files with missing lines	Patch %	Lines
...c/app/components/handlers/PasswordResetHandler.tsx	90.00%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1793      +/-   ##
==========================================
- Coverage   41.65%   41.59%   -0.07%     
==========================================
  Files         541      541              
  Lines       23685    23682       -3     
  Branches     7835     6991     -844     
==========================================
- Hits         9867     9851      -16     
- Misses      13178    13789     +611     
+ Partials      640       42     -598     

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[jacbn]

I have pushed a change to remove the now-unused action types, but otherwise this looks good. I was having some issues not being able to reset a password through the standard means while testing, but that was an unrelated issue we semi-patched here, but could use some more thought on a deeper fix eventually. Made a card!