feat: clean up task list in HistoryPreview and History components #13336

Job	Run time
check-translations	45s
knip	45s
platform-unit-test (ubuntu-latest)	3m 19s
check-openrouter-api-key	4s
platform-unit-test (windows-latest)	3m 23s
compile	2m 13s
integration-test	8m 30s
notify-slack-on-failure	-1s
	18m 58s

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