chore: componentise feature filters

[kyle-ssg]

Thanks for submitting a PR! Please check the boxes below:

• I have added information to docs/ if required so people know about the feature!
• I have filled in the "Changes" section below?
• I have filled in the "How did you test this code" section below?
• I have used a Conventional Commit title for this Pull Request

Changes

• Componentises feature table filters so that they can be reused between features, identity and future pages completely
• Adds persistent URL filtering to identity page

How did you test this code?

Filter and sort on both the features page and an identity

[vercel]

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Project	Deployment	Preview	Comments	Updated (UTC)
flagsmith-frontend-preview	Ready	Preview	Comment	Oct 28, 2025 10:30am
flagsmith-frontend-staging	Ready	Preview	Comment	Oct 28, 2025 10:30am

1 Skipped Deployment

Project	Deployment	Preview	Comments	Updated (UTC)
docs	Ignored	Preview		Oct 28, 2025 10:30am

[github-actions]

Docker builds report

Image	Build Status	Security report
ghcr.io/flagsmith/flagsmith-api-test:pr-6119	Finished ✅	Skipped
ghcr.io/flagsmith/flagsmith-e2e:pr-6119	Finished ✅	Skipped
ghcr.io/flagsmith/flagsmith-api:pr-6119	Finished ✅	Results ✅
ghcr.io/flagsmith/flagsmith:pr-6119	Finished ✅	Results ✅
ghcr.io/flagsmith/flagsmith-private-cloud:pr-6119	Finished ✅	Results ✅
ghcr.io/flagsmith/flagsmith-frontend:pr-6119	Finished ✅	Results ✅

[Zaimwa9]

Quite minors one. I'll approve in case not using sort from url is by design otherwise this change and good to go.
Other are minors and ignorable