Migrate docs posthog to proxy

[atbe]

	🚀 This PR description was created by Ellipsis for commit 005eb8e.

Summary:

This PR changes the api_host in the posthog.init function in main.html from 'https://app.posthog.com' to 'https://p.useinstructor.com', indicating a migration of the PostHog analytics service.

Key points:

• Modified main.html in docs/overrides directory
• Changed api_host in posthog.init from 'https://app.posthog.com' to 'https://p.useinstructor.com'

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Generated with ❤️ by ellipsis.dev

[ellipsis-dev]

👍 Looks good to me!

• Reviewed the entire pull request up to 005eb8e
• Looked at 14 lines of code in 1 files
• Took 30 seconds to review

More info

• Skipped 0 files when reviewing.
• Skipped posting 1 additional comments because they didn't meet confidence threshold of 85%.

1. /docs/overrides/main.html:4:

• Assessed confidence : 0%
• Comment:
  Please ensure that the new URL 'https://p.useinstructor.com' is correctly configured to receive data from PostHog.
• Reasoning:
  The change in the PR is a simple URL change for the PostHog analytics service. The new URL 'https://p.useinstructor.com' is being used instead of 'https://app.posthog.com'. This change doesn't seem to introduce any bugs or violate any best practices. However, it's important to ensure that the new URL is correct and the service is properly configured to receive data at this endpoint.

Workflow ID: wflow_w4QZUwLzraqVX1kz

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