[PM-26731] Add feature flag for chromium importers with ABE

[djsmith85]

🎟️ Tracking

https://bitwarden.atlassian.net/browse/PM-26731

📔 Objective

Add feature flag for chromium importer with ABE

• Add missing browser to SUPPORTED_BROWSERS in windows.rs
  • These were previously removed due to needing ABE support
• Add feature flag for chromium importer with ABE

⏰ Reminders before review

• Contributor guidelines followed
• All formatters and local linters executed and passed
• Written new unit and / or integration tests where applicable
• Protected functional changes with optionality (feature flags)
• Used internationalization (i18n) for all UI strings
• CI builds passed
• Communicated to DevOps any deployment requirements
• Updated any necessary documentation (Confluence, contributing docs) or informed the documentation team

🦮 Reviewer guidelines

• 👍 (:+1:) or similar for great changes
• 📝 (:memo:) or ℹ️ (:information_source:) for notes or general info
• ❓ (:question:) for questions
• 🤔 (:thinking:) or 💭 (:thought_balloon:) for more open inquiry that's not quite a confirmed issue and could potentially benefit from discussion
• 🎨 (:art:) for suggestions / improvements
• ❌ (:x:) or ⚠️ (:warning:) for more significant problems or concerns needing attention
• 🌱 (:seedling:) or ♻️ (:recycle:) for future improvements or indications of technical debt
• ⛏ (:pick:) for minor or nitpick changes

[github-actions]

Checkmarx One – Scan Summary & Details – 1ac85390-ec73-4d37-bcf9-f7436e167108

Great job! No new security vulnerabilities introduced in this pull request

[codecov]

Codecov Report

❌ Patch coverage is 85.00000% with 3 lines in your changes missing coverage. Please review.
✅ Project coverage is 39.20%. Comparing base (9c0aaf3) to head (bed6f33).
⚠️ Report is 1 commits behind head on main.
✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
...er/src/services/default-import-metadata.service.ts	84.21%	1 Missing and 2 partials ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #16926   +/-   ##
=======================================
  Coverage   39.20%   39.20%           
=======================================
  Files        3463     3463           
  Lines       98115    98132   +17     
  Branches    14733    14736    +3     
=======================================
+ Hits        38466    38473    +7     
- Misses      57985    57994    +9     
- Partials     1664     1665    +1     

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
14.5% Duplication on New Code

See analysis details on SonarQube Cloud