fix: feature panel url updating url when opening

[tiagoapolo]

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Changes

Fixes:

• opening create/edit feature panel was not updating url to match current tab
• use effect was reopening the feature panel modal even when it was already open

How did you test this code?

Please describe.

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Name	Status	Preview	Comments	Updated (UTC)
flagsmith-frontend-preview	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Feb 25, 2025 3:18am
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[github-actions]

Docker builds report

Image	Build Status	Security report
ghcr.io/flagsmith/flagsmith-e2e:pr-5159	Finished ✅	Skipped
ghcr.io/flagsmith/flagsmith-api:pr-5159	Finished ✅	Results ✅
ghcr.io/flagsmith/flagsmith:pr-5159	Finished ✅	Results ✅
ghcr.io/flagsmith/flagsmith-private-cloud:pr-5159	Finished ✅	Results ✅
ghcr.io/flagsmith/flagsmith-frontend:pr-5159	Finished ✅	Results ✅

[github-actions]

Uffizzi Ephemeral Environment deployment-61286

☁️ https://app.uffizzi.com/github.com/Flagsmith/flagsmith/pull/5159

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