Fixes#7732 - The proxy status change listener was dispatching ProxyStatusChangedUI
before the Traefik version check job had a chance to run. This caused users to see
stale version information when they refreshed the page immediately after restarting
the proxy.
The fix defers the UI refresh when a Traefik version check is being dispatched. The
version check job already dispatches its own ProxyStatusChangedUI event when
complete, ensuring the UI refreshes with updated version data.
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Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
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