feat: use outline icons

[luka-nextcloud]

📝 Summary

• Resolves: 🎨 Use outline icons #7388

🖼️ Screenshots

🏚️ Before | 🏡 After
Before:

After:

🏁 Checklist

• Code is properly formatted (npm run lint / npm run stylelint / composer run cs:check)
• Sign-off message is added to all commits
• Tests (unit, integration and/or end-to-end) passing and the changes are covered with tests

[codecov]

Codecov Report

Attention: Patch coverage is 97.05882% with 1 line in your changes missing coverage. Please review.

Project coverage is 59.76%. Comparing base (20138c3) to head (82f2387).

Files with missing lines	Patch %	Lines
src/components/ViewerComponent.vue	0.00%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #7456   +/-   ##
=======================================
  Coverage   59.75%   59.76%           
=======================================
  Files         494      494           
  Lines       37700    37702    +2     
  Branches     1089     1089           
=======================================
+ Hits        22529    22531    +2     
  Misses      15065    15065           
  Partials      106      106           

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