fix(desktop): eliminate white flash on window resize #1380

Bugbot Review

Bugbot Analysis Progress (6m 51s elapsed)

✅ Gathered PR context (2s)
✅ Completed bug detection (6m 45s)
✅ Posted analysis results (3s)

Final Result: Bugbot completed review and found 2 potential issues.

Request ID: serverGenReqId_2ea22799-0533-4014-aed2-79ac129dc881

Cursor Bugbot has reviewed your changes and found 2 potential issues.

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