enhance(frontend): improve nested popup menu ux

[syuilo]

What

Before

After

After (visualized)

Why

UX向上

Additional info (optional)

todo

• 右以外に開く場合の対応
• メニューがスクロールしている場合の対応

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

❌ Patch coverage is 0% with 45 lines in your changes missing coverage. Please review.
✅ Project coverage is 13.76%. Comparing base (78435dc) to head (023d45b).
⚠️ Report is 206 commits behind head on develop.

Files with missing lines	Patch %	Lines
packages/frontend/src/components/MkMenu.vue	0.00%	36 Missing and 7 partials ⚠️
packages/frontend/src/components/MkPopupMenu.vue	0.00%	2 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop   #17187      +/-   ##
===========================================
- Coverage    13.97%   13.76%   -0.22%     
===========================================
  Files          237      241       +4     
  Lines        11273    11729     +456     
  Branches      3728     3963     +235     
===========================================
+ Hits          1575     1614      +39     
- Misses        7578     7940     +362     
- Partials      2120     2175      +55     

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[syuilo]

/preview

[syuilo]

入れるか