refactor: add editor module

[mtth]

No description provided.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 96.66667% with 1 line in your changes missing coverage. Please review.

Project coverage is 86.96%. Comparing base (143107b) to head (291bc1a).

Files with missing lines	Patch %	Lines
src/git_draft/editor.py	96.66%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #31      +/-   ##
==========================================
+ Coverage   81.30%   86.96%   +5.66%     
==========================================
  Files           7        8       +1     
  Lines         353      353              
  Branches       26       26              
==========================================
+ Hits          287      307      +20     
+ Misses         52       31      -21     
- Partials       14       15       +1     

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