feat: add error code for email already verified

[pash2048]

See parse-community/parse-server##7740

New Pull Request Checklist

• I am not disclosing a vulnerability.
• I am creating this PR in reference to an issue.

Issue Description

This PR adds a new error code when users requestEmailVerification for verified email, now the parse server sends the OTHER_CAUSE error code and it needs a better error code instead of -1 and should have a message instead of stack property.

Related issue:
parse-community/parse-server##7740

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@@           Coverage Diff            @@
##             alpha    #1438   +/-   ##
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  Coverage         ?   99.94%           
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  Files            ?       61           
  Lines            ?     5949           
  Branches         ?     1354           
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  Hits             ?     5946           
  Misses           ?        3           
  Partials         ?        0           

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[mtrezza]

Could you remove the 2nd empty line?

[pash2048]

sorry for being late. I removed 2nd empty line and push agin.
please check

[mtrezza]

Looks good! Since this depends on a PR in Parse Server for parse-community/parse-server#7740, we'll wait with merging until a PR has been submitted there.