fix(frontend): Misskeyの利用中に使用できるタイムラインの種類が変化した場合、使用できないタイムラインが表示されないように

[kakkokari-gtyih]

What

ポリシーの変更などで使用できるタイムラインが変化しても、初回読み込みやページ遷移からの回復などで使用できなくなったタイムラインのページが表示できてしまうのを修正

Why

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 20 lines in your changes missing coverage. Please review.

Project coverage is 20.18%. Comparing base (41936c1) to head (505b0ea).
Report is 7 commits behind head on develop.

Files	Patch %	Lines
packages/frontend/src/pages/timeline.vue	0.00%	20 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##           develop   #14412       +/-   ##
============================================
- Coverage    39.91%   20.18%   -19.74%     
============================================
  Files         1545      723      -822     
  Lines       190505   100300    -90205     
  Branches      2654     1050     -1604     
============================================
- Hits         76046    20244    -55802     
+ Misses      113898    79514    -34384     
+ Partials       561      542       -19     

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[syuilo]

🙏🏿