fix(frontend): instance infoページで不必要なapiリクエストが飛ぶのを抑止

[kakkokari-gtyih]

What

• モデレーションノート変更の検知をiAmModerator限定に変更
• 型定義まわりの修正

Why

Fix #13919

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 0% with 43 lines in your changes missing coverage. Please review.

Project coverage is 19.97%. Comparing base (cdb0566) to head (8f4a58c).
Report is 2 commits behind head on develop.

Files with missing lines	Patch %	Lines
packages/frontend/src/components/MkChart.vue	0.00%	26 Missing ⚠️
packages/frontend/src/pages/instance-info.vue	0.00%	17 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop   #14515      +/-   ##
===========================================
- Coverage    19.97%   19.97%   -0.01%     
===========================================
  Files          725      725              
  Lines       100568   100579      +11     
  Branches      1047     1047              
===========================================
  Hits         20089    20089              
- Misses       79935    79946      +11     
  Partials       544      544              

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[syuilo]

🙏🏿