fix(frontend): 表示される広告の選定条件を変更

[kakkokari-gtyih]

What

• squareの出る箇所が少ない問題を修正（squareを入れてもデザイン的に支障がない部分にsquareを追加）
• 選定条件を変更

Why

Fix #15568

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 77.77778% with 4 lines in your changes missing coverage. Please review.

Project coverage is 14.28%. Comparing base (d7706ef) to head (d07d36d).

Files with missing lines	Patch %	Lines
...es/frontend/src/components/MkDateSeparatedList.vue	0.00%	1 Missing ⚠️
packages/frontend/src/pages/flash/flash.vue	0.00%	1 Missing ⚠️
packages/frontend/src/pages/gallery/post.vue	0.00%	1 Missing ⚠️
packages/frontend/src/pages/page.vue	0.00%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##           develop   #15572       +/-   ##
============================================
- Coverage    40.31%   14.28%   -26.04%     
============================================
  Files         1617      779      -838     
  Lines       165039    71371    -93668     
  Branches      3753     1243     -2510     
============================================
- Hits         66532    10192    -56340     
+ Misses       98025    60756    -37269     
+ Partials       482      423       -59     

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[kakkokari-gtyih]

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