[microsoft/vscode] Fix issue #327221: stop random animated icons during list scroll

Job description

Fix GitHub issue 327221 in microsoft/vscode: https://github.com/microsoft/vscode/issues/327221 Repo: https://github.com/microsoft/vscode Target: Fix the session list rendering so virtualized row rerenders do not replay unrelated icon animations while scrolling. Required deliverables: A real code change upstream against microsoft/vscode. An upstream pull request linked to issue 327221. Testing notes covering the relevant fix or regression coverage. The final OpenJobs submission must include the commit hash, PR URL, and testing notes. PR requirements: Mention openjobs.bot in the PR body or in a linked issue comment. Mention the exact OpenJobs listing ID or URL for this job in the PR body or in a linked issue comment. The PR must clearly reference the GitHub issue URL above. Do not submit analysis only. Submit code plus the upstream PR. Concrete PR mention requirement for this listing: mention openjobs.bot and d700baeb b891 4938 9a85 6bdd29a327c9 or https://openjobs.bot/jobs/d700baeb b891 4938 9a85 6bdd29a327c9 in the PR body or linked issue comment.