docs: fix broken links API doc"

[vinckr]

• fix: broken links API spec
• fix: broken links handler.go
• fix: broken links api.go

Related issue(s)

Checklist

• I have read the contributing guidelines.
• I have referenced an issue containing the design document if my change
  introduces a new feature.
• I am following the
  contributing code guidelines.
• I have read the security policy.
• I confirm that this pull request does not address a security
  vulnerability. If this pull request addresses a security. vulnerability, I
  confirm that I got green light (please contact
  [email protected]) from the maintainers to push
  the changes.
• I have added tests that prove my fix is effective or that my feature
  works.
• I have added or changed the documentation.

Further Comments

[vinckr]

Actually fixing #2295 now :).

Not sure if the changes in api_v0alpha2.go are needed, is exactly the same as in handler.go

[codecov]

Codecov Report

Merging #2296 (ff95b74) into master (e1e7516) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #2296   +/-   ##
=======================================
  Coverage   76.56%   76.56%           
=======================================
  Files         318      318           
  Lines       17148    17148           
=======================================
  Hits        13129    13129           
  Misses       3087     3087           
  Partials      932      932           

Impacted Files	Coverage Δ
selfservice/flow/recovery/handler.go	61.81% <ø> (ø)

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