Point website to new chat backend

[Steve-Mcl]

Description

Updates URL to prod api

Related Issue(s)

Checklist

• I have read the contribution guidelines
• I have considered the performance impact of these changes
• Suitable unit/system level tests have been added and they pass
• Documentation has been updated
• For blog PRs, an Art Request has been created (instructions)

[netlify]

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Lighthouse	1 paths audited Performance: 86 (🟢 up 22 from production) Accessibility: 80 (no change from production) Best Practices: 100 (🟢 up 8 from production) SEO: 92 (no change from production) PWA: - View the detailed breakdown and full score reports

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[netlify]

✅ Deploy Preview for flowforge-website ready!

Name	Link
🔨 Latest commit	c19f8b3
🔍 Latest deploy log	https://app.netlify.com/projects/flowforge-website/deploys/691a380775682a000883c922
😎 Deploy Preview	https://deploy-preview-4103--flowforge-website.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.
Lighthouse	1 paths audited Performance: 82 (🟢 up 18 from production) Accessibility: 80 (no change from production) Best Practices: 100 (🟢 up 8 from production) SEO: 92 (no change from production) PWA: - View the detailed breakdown and full score reports

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[cstns]

Handled in FlowFuse/flowfuse#6310