refactor: 動画再生ライブラリをfvpに変更

[4ster1sk]

• 動画再生ライブラリをmedia_kitからfvpに変更しました
• iOS/Androidでは動画再生時のみ、video_playerを使用するようにしています(一部.movファイルでバッファリングが詰まってしまうことがあるため)
• 再生速度の変更(0.25x〜3.00x)、ループ再生に対応しました

[codecov-commenter]

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Codecov Report

❌ Patch coverage is 0% with 393 lines in your changes missing coverage. Please review.
✅ Project coverage is 27.82%. Comparing base (2866641) to head (dfb39b8).
⚠️ Report is 1 commits behind head on develop.

Files with missing lines	Patch %	Lines
lib/view/common/note_file_dialog/media_player.dart	0.00%	389 Missing ⚠️
lib/l10n/app_localizations_zh.dart	0.00%	2 Missing ⚠️
lib/l10n/app_localizations_ja.dart	0.00%	1 Missing ⚠️
lib/view/common/note_file_dialog/media_viewer.dart	0.00%	1 Missing ⚠️
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Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #842      +/-   ##
===========================================
- Coverage    28.12%   27.82%   -0.31%     
===========================================
  Files          375      375              
  Lines        22445    22691     +246     
===========================================
  Hits          6313     6313              
- Misses       16132    16378     +246     

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