This PR solves the issue #1666 
To solve this i removed the upgrade link from the general case since
errors related to pro mode are already handled in the specific if-blocks



<!-- This is an auto-generated description by cubic. -->
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## Summary by cubic
Hide the Dyad Pro upgrade banner on termination errors to reduce
confusion. The generic upgrade link in ChatErrorBox is now suppressed
when the error includes "TypeError: terminated" and only shows when Pro
is disabled otherwise.

<sup>Written for commit 1edf665. Summary will update automatically on
new commits.</sup>

<!-- End of auto-generated description by cubic. -->