fix(frontend): URLプレイヤーウィンドウでiframeが読み込まれるまでの間にinvalid urlと表示される問題を修正

[kakkokari-gtyih]

What

• URLプレイヤーウィンドウでiframeが読み込まれるまでの間にinvalid urlと表示される問題を修正
• URLプレイヤーウィンドウに対してそのままSummalyResultを渡すこともできるように（fetch一回解消）

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

❌ Patch coverage is 90.90909% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 15.22%. Comparing base (89ae64b) to head (7fdc158).
⚠️ Report is 1 commits behind head on develop.

Files with missing lines	Patch %	Lines
packages/frontend/src/components/MkUrlPreview.vue	90.90%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop   #17417      +/-   ##
===========================================
- Coverage    22.81%   15.22%   -7.60%     
===========================================
  Files         1160      247     -913     
  Lines        39655    12349   -27306     
  Branches     11015     4192    -6823     
===========================================
- Hits          9048     1880    -7168     
+ Misses       24585     8196   -16389     
+ Partials      6022     2273    -3749     

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[kakkokari-gtyih]

👀

[syuilo]

👍