fix: update dashboard import URL

[arcoraven]

PR-Codex overview

This PR updates the URL in the message logged when the Engine server starts, changing it from the dashboard link to a team-specific link.

Detailed summary

• Modified the message in src/server/index.ts to change the URL from https://thirdweb.com/dashboard/engine?importUrl=${encodeURIComponent(url)}
• Updated it to https://thirdweb.com/team/~/~/engine/import?importUrl=${encodeURIComponent(url)}

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