fix(frontend): MFM ruby nyaize

[paihu]

What

MFM ruby でも nyaizeするようにした。

Why

close #12361

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: 8 lines in your changes are missing coverage. Please review.

Comparison is base (b15f293) 78.63% compared to head (efaca5c) 78.61%.

Files	Patch %	Lines
...src/components/global/MkMisskeyFlavoredMarkdown.ts	0.00%	8 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop   #12362      +/-   ##
===========================================
- Coverage    78.63%   78.61%   -0.03%     
===========================================
  Files          176      176              
  Lines        23334    23340       +6     
  Branches       495      495              
===========================================
  Hits         18349    18349              
- Misses        4985     4991       +6     

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[github-actions]

このPRによるapi.jsonの差分

差分はこちら

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[syuilo]

🙏