feat(api): add recaptcha support

[ginkoid]

No description provided.

[codecov]

Codecov Report

Merging #534 into master will increase coverage by 0.25%.
The diff coverage is 58.33%.

@@            Coverage Diff             @@
##           master     #534      +/-   ##
==========================================
+ Coverage   60.22%   60.47%   +0.25%     
==========================================
  Files          86       87       +1     
  Lines        1360     1384      +24     
  Branches       54       57       +3     
==========================================
+ Hits          819      837      +18     
- Misses        518      522       +4     
- Partials       23       25       +2     

Impacted Files	Coverage Δ
server/config/client.ts	60.00% <0.00%> (-15.00%)	⬇️
server/config/server.ts	80.00% <ø> (ø)
server/responses.ts	100.00% <ø> (ø)
server/api/users/me-auth/email/put.js	29.72% <33.33%> (+0.31%)	⬆️
server/util/recaptcha.ts	61.53% <61.53%> (ø)
server/api/auth/recover.js	69.23% <66.66%> (-0.34%)	⬇️
server/api/auth/register.js	51.11% <66.66%> (+1.11%)	⬆️
server/util/index.ts	83.33% <100.00%> (+0.57%)	⬆️
server/leaderboard/calculate.js	61.19% <0.00%> (+5.97%)	⬆️

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