fix: render all top-level segment rules in the UI instead

[Zaimwa9]

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Changes

Closes #7254

• Removed the hardcoded *rules[0] to properly deal with multiple top level rules

⚠️ Backend modification were overkill and might have required migrating all existing rules with multiple top level rules

How did you test this code?

• Not yet

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Project	Deployment	Actions	Updated (UTC)
flagsmith-frontend-preview	Ready	Preview, Comment	Apr 24, 2026 4:54pm
flagsmith-frontend-staging	Ready	Preview, Comment	Apr 24, 2026 4:54pm

1 Skipped Deployment

Project	Deployment	Actions	Updated (UTC)
docs	Ignored		Apr 24, 2026 4:54pm

[github-actions]

Docker builds report

Image	Build Status	Security report
ghcr.io/flagsmith/flagsmith-api-test:pr-7342	Finished ✅	Skipped
ghcr.io/flagsmith/flagsmith-e2e:pr-7342	Finished ✅	Skipped
ghcr.io/flagsmith/flagsmith-api:pr-7342	Finished ✅	Results ✅
ghcr.io/flagsmith/flagsmith:pr-7342	Finished ✅	Results ✅
ghcr.io/flagsmith/flagsmith-private-cloud:pr-7342	Finished ✅	Results ✅
ghcr.io/flagsmith/flagsmith-frontend:pr-7342	Finished ✅	Results ✅

[github-actions]

Playwright Test Results (oss - depot-ubuntu-latest-16)

 11 passed

Details

 11 tests across 8 suites
 24.4 seconds
 ad79c58
 🔄 Run: #16331 (attempt 1)

Playwright Test Results (oss - depot-ubuntu-latest-arm-16)

 11 passed

Details

 11 tests across 8 suites
 11.4 seconds
 ad79c58
 🔄 Run: #16331 (attempt 1)

Playwright Test Results (private-cloud - depot-ubuntu-latest-16)

 17 passed

Details

 17 tests across 14 suites
 53.5 seconds
 ad79c58
 🔄 Run: #16331 (attempt 1)

Playwright Test Results (private-cloud - depot-ubuntu-latest-arm-16)

 17 passed

Details

 17 tests across 14 suites
 58.9 seconds
 ad79c58
 🔄 Run: #16331 (attempt 1)

[github-actions]

Visual Regression

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