refactor(frontend): frontend-embed/src/to-be-sharedを共通化

[kakkokari-gtyih]

What

書いてあるとおり

Why

Fix #14530

Additional info (optional)

Checklist

• Read the contribution guide
• Test working in a local environment
• (If needed) Add story of storybook
• (If needed) Update CHANGELOG.md
• (If possible) Add tests

[codecov]

Codecov Report

Attention: Patch coverage is 36.45833% with 61 lines in your changes missing coverage. Please review.

Project coverage is 19.53%. Comparing base (f393b6b) to head (a9ec768).
Report is 3 commits behind head on develop.

Files with missing lines	Patch %	Lines
packages/frontend/src/ui/classic.vue	0.00%	3 Missing ⚠️
...ackages/frontend/src/components/MkNoteDetailed.vue	0.00%	2 Missing ⚠️
packages/frontend/src/store.ts	0.00%	2 Missing ⚠️
packages/frontend/src/ui/universal.vue	0.00%	2 Missing ⚠️
packages/frontend/src/boot/common.ts	0.00%	1 Missing ⚠️
packages/frontend/src/boot/main-boot.ts	0.00%	1 Missing ⚠️
...ckages/frontend/src/components/MkCropperDialog.vue	0.00%	1 Missing ⚠️
packages/frontend/src/components/MkDonation.vue	0.00%	1 Missing ⚠️
...s/frontend/src/components/MkEmbedCodeGenDialog.vue	0.00%	1 Missing ⚠️
packages/frontend/src/components/MkPreview.vue	0.00%	1 Missing ⚠️
... and 46 more

Additional details and impacted files

@@             Coverage Diff             @@
##           develop   #14536      +/-   ##
===========================================
- Coverage    19.57%   19.53%   -0.05%     
===========================================
  Files          717      713       -4     
  Lines       100466   100287     -179     
  Branches      1005      997       -8     
===========================================
- Hits         19669    19591      -78     
+ Misses       80251    80152      -99     
+ Partials       546      544       -2     

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[kakkokari-gtyih]

音声UIは独自UIに変更された＋右クリック伝播防止はMkMediaAudio側に入っているので完全に共通化してOK

[syuilo]

🙏🏿