CWテキストをコピーできるように

[Npepperlinux]

CWテキストをコピーできる場所が無かったため、copy_note_modal_sheel.dartにCWテキストの項目を追加しました

[codecov-commenter]

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Codecov Report

Attention: Patch coverage is 0% with 25 lines in your changes missing coverage. Please review.

Project coverage is 27.56%. Comparing base (cb8696b) to head (6274039).
Report is 1 commits behind head on develop.

Files with missing lines	Patch %	Lines
...b/view/copy_modal_sheet/copy_note_modal_sheet.dart	0.00%	23 Missing ⚠️
lib/view/note_modal_sheet/note_modal_sheet.dart	0.00%	2 Missing ⚠️

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Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #702      +/-   ##
===========================================
- Coverage    27.59%   27.56%   -0.04%     
===========================================
  Files          312      312              
  Lines        16454    16474      +20     
===========================================
  Hits          4541     4541              
- Misses       11913    11933      +20     

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