feat: diffと削除のメッセージを一定時間後に削除

[MikuroXina]

close #484.

Type of Change:

機能の新規追加

Details of implementation (実施内容)

#484 およびその元になった #480 で議論された機能を実装しました.

Additional Information (追加情報)

リアクションでキャンセルする機能のために, メッセージリアクションのインテントを追加しています.

[codecov-commenter]

Codecov Report

Merging #485 (279d720) into main (586bd15) will decrease coverage by 0.25%.
The diff coverage is 21.73%.

@@            Coverage Diff             @@
##             main     #485      +/-   ##
==========================================
- Coverage   73.94%   73.68%   -0.26%     
==========================================
  Files          60       60              
  Lines        4352     4367      +15     
  Branches      372      372              
==========================================
  Hits         3218     3218              
- Misses        763      778      +15     
  Partials      371      371              

Flag	Coverage Δ
unittests	73.68% <21.73%> (-0.26%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
src/adaptor/proxy/middleware/message-convert.ts	36.23% <0.00%> (-10.07%)	⬇️
src/service/deletion-repeater.ts	89.39% <66.66%> (ø)
src/service/difference-detector.ts	80.95% <100.00%> (ø)

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[github-actions]

🎉 This PR is included in version 1.26.0 🎉

The release is available on:

• GitHub release
• v1.26.0

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