feat: frontend-clone-segments 🔴 Blocked by #5393

[Zaimwa9]

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Changes

🔴 Blocked by #5393 (feat/backend-clone-segments)

This PR implements the frontend part to consume the new clone segment API endpoint and allow the duplication of existing segments

• ⚠️ Introduces new flag clone_segment

• Reviewed UI to use a dropdown instead of trash button in SegmentRow

• cloneSegment mutation to consume /api/v1/projects/{projectId}/segments/{segmentId}/clone/ accepting a (required) name as body payload

• Refactored SegmentsPage to extract SegmentRow

• Extracted ActionItem as single component, calculateListPosition as utils

How did you test this code?

• New E2E tests
• Postman requests
• Fullstack branch feat/clone-segments-and-feature-segments

Project Segment creation
https://www.loom.com/share/27ec8d4a2d8d4c24b443ac5d2b12231e?focus_title=1&muted=1&from_recorder=1

Feature specific segment creation
https://www.loom.com/share/8cc4d8e92ce84c459dfb6598ebb42acb

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Name	Status	Preview	Comments	Updated (UTC)
flagsmith-frontend-preview	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	May 1, 2025 3:48pm
flagsmith-frontend-staging	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	May 1, 2025 3:48pm

1 Skipped Deployment

Name	Status	Preview	Comments	Updated (UTC)
docs	⬜️ Ignored (Inspect)	Visit Preview		May 1, 2025 3:48pm

[github-actions]

Docker builds report

Image	Build Status	Security report
ghcr.io/flagsmith/flagsmith:pr-5394	Finished ✅	Results ✅
ghcr.io/flagsmith/flagsmith-private-cloud:pr-5394	Finished ✅	Results ✅
ghcr.io/flagsmith/flagsmith-api-test:pr-5394	Finished ✅	Skipped
ghcr.io/flagsmith/flagsmith-e2e:pr-5394	Finished ✅	Skipped
ghcr.io/flagsmith/flagsmith-frontend:pr-5394	Finished ✅	Results ✅
ghcr.io/flagsmith/flagsmith-api:pr-5394	Finished ✅	Results ✅
ghcr.io/flagsmith/flagsmith:pr-5394	Finished ✅	Results ✅
ghcr.io/flagsmith/flagsmith-private-cloud:pr-5394	Finished ✅	Results ✅
ghcr.io/flagsmith/flagsmith-frontend:pr-5394	Finished ✅	Results ✅

[github-actions]

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