fix: login redirect

[kyle-ssg]

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Changes

Fixes the following:

Sometimes if you load exactly https://app.flagsmith.com directly it displays the login form with the app nav rather than redirecting to the features page.

How did you test this code?

• Repeatedly Go to the preview url (not by refreshing the page but by pasting the url https://vercel.live/open-feedback/flagsmith-frontend-preview-git-fix-login-redirect-flagsmith.vercel.app)
• Note you never see the above
• I replicated the above and ensured it was being hit with the following log
  

Vs another preview url e.g. https://flagsmith-frontend-preview-git-fix-preserve-se-905e7b-flagsmith.vercel.app/

[vercel]

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Name	Status	Preview	Comments	Updated (UTC)
flagsmith-frontend-preview	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Jun 19, 2024 3:18pm
flagsmith-frontend-staging	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Jun 19, 2024 3:18pm

1 Ignored Deployment

Name	Status	Preview	Comments	Updated (UTC)
docs	⬜️ Ignored (Inspect)	Visit Preview		Jun 19, 2024 3:18pm

[github-actions]

Uffizzi Preview deployment-53231 was deleted.