Migrate custom SVG sprite icons to lucide-react

[Copilot]

Removes the custom SVG sprite system (icons.svg + Icon.tsx) from the extension package and replaces all usages with lucide-react components, which was already a listed dependency.

Icon mapping

Old (<Icon name="...">)	New (lucide-react)
open-outline	ExternalLink
chevron	ChevronRight
close	X
refresh	RefreshCw
check	Check
error	AlertCircle
copy	Copy

Changes

• Deleted src/icons.svg and src/components/Icon.tsx
• Entry points (content_script.tsx, options_page.tsx): removed SVG sprite injection (shadow.innerHTML = icons, insertAdjacentHTML, icons.css load)
• Components (OpenInTab, Menu, ResultPopup, MenuItem, TextStyle, InvisibleItem): replaced <Icon name="..."> with the corresponding Lucide component
• CSS (OpenInTab.css, Menu.module.css, ResultPopup.module.css): replaced fill with color and transition: fill with transition: color — Lucide SVGs use stroke="currentColor" rather than fill

[codecov]

Codecov Report

❌ Patch coverage is 0% with 18 lines in your changes missing coverage. Please review.
✅ Project coverage is 25.17%. Comparing base (eb21e53) to head (476e5c8).
⚠️ Report is 12 commits behind head on main.

Files with missing lines	Patch %	Lines
...es/extension/src/components/menu/InvisibleItem.tsx	0.00%	4 Missing ⚠️
...ackages/extension/src/components/menu/MenuItem.tsx	0.00%	4 Missing ⚠️
packages/extension/src/components/OpenInTab.tsx	0.00%	3 Missing ⚠️
...ages/extension/src/components/result/TextStyle.tsx	0.00%	3 Missing ⚠️
packages/extension/src/components/menu/Menu.tsx	0.00%	2 Missing ⚠️
...es/extension/src/components/result/ResultPopup.tsx	0.00%	2 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #353   +/-   ##
=======================================
  Coverage   25.17%   25.17%           
=======================================
  Files         324      323    -1     
  Lines       31863    31847   -16     
  Branches     1559     1558    -1     
=======================================
- Hits         8020     8019    -1     
+ Misses      23843    23828   -15     

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📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

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• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

[codecov]

Codecov Report

❌ Patch coverage is 0% with 18 lines in your changes missing coverage. Please review.
✅ Project coverage is 25.17%. Comparing base (eb21e53) to head (476e5c8).
⚠️ Report is 12 commits behind head on main.

Files with missing lines	Patch %	Lines
...es/extension/src/components/menu/InvisibleItem.tsx	0.00%	4 Missing ⚠️
...ackages/extension/src/components/menu/MenuItem.tsx	0.00%	4 Missing ⚠️
packages/extension/src/components/OpenInTab.tsx	0.00%	3 Missing ⚠️
...ages/extension/src/components/result/TextStyle.tsx	0.00%	3 Missing ⚠️
packages/extension/src/components/menu/Menu.tsx	0.00%	2 Missing ⚠️
...es/extension/src/components/result/ResultPopup.tsx	0.00%	2 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #353   +/-   ##
=======================================
  Coverage   25.17%   25.17%           
=======================================
  Files         324      323    -1     
  Lines       31863    31847   -16     
  Branches     1559     1558    -1     
=======================================
- Hits         8020     8019    -1     
+ Misses      23843    23828   -15     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

[codecov]

Codecov Report

❌ Patch coverage is 0% with 18 lines in your changes missing coverage. Please review.
✅ Project coverage is 25.17%. Comparing base (eb21e53) to head (476e5c8).
⚠️ Report is 16 commits behind head on main.

Files with missing lines	Patch %	Lines
...es/extension/src/components/menu/InvisibleItem.tsx	0.00%	4 Missing ⚠️
...ackages/extension/src/components/menu/MenuItem.tsx	0.00%	4 Missing ⚠️
packages/extension/src/components/OpenInTab.tsx	0.00%	3 Missing ⚠️
...ages/extension/src/components/result/TextStyle.tsx	0.00%	3 Missing ⚠️
packages/extension/src/components/menu/Menu.tsx	0.00%	2 Missing ⚠️
...es/extension/src/components/result/ResultPopup.tsx	0.00%	2 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #353   +/-   ##
=======================================
  Coverage   25.17%   25.17%           
=======================================
  Files         324      323    -1     
  Lines       31863    31847   -16     
  Branches     1559     1558    -1     
=======================================
- Hits         8020     8019    -1     
+ Misses      23843    23828   -15     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.