feat: add checkout inside page

[psincraian]

No description provided.

[sentry-io]

🔍 Existing Issues For Review

Your pull request is modifying functions with the following pre-existing issues:

📄 File: app/pricing/components/price.tsx

Function	Unhandled Issue
SubscriptionButtons	ReferenceError: isSubscribed is not defined /pricing Event Count: 1 Affected Users: 1

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