fix(cli): accept hideAuthorEmail arg

[PKief]

Follow up of #247, resolves #246

This PR improves the configuration of the hideAuthorEmail flag to make it work correctly. Before the flag was not properly applied to the logic. The PR also adds a test to ensure that it works.

[codecov]

Codecov Report

Attention: Patch coverage is 75.00000% with 1 line in your changes missing coverage. Please review.

Project coverage is 45.88%. Comparing base (0914fd7) to head (a126374).
Report is 72 commits behind head on main.

Files with missing lines	Patch %	Lines
src/commands/default.ts	0.00%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##             main     #275       +/-   ##
===========================================
- Coverage   69.10%   45.88%   -23.23%     
===========================================
  Files           9       12        +3     
  Lines         916      996       +80     
  Branches       85      102       +17     
===========================================
- Hits          633      457      -176     
- Misses        283      537      +254     
- Partials        0        2        +2     

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