refactor(jobmonitor)!: data table virtualization, search bar decomposition, context split #782

Job	Run time
prepare-gubbins-backend	4m 7s
prepare-gubbins-frontend-as-a-standalone	2m 47s
run-lint	1m 3s
build-gubbins-dev-image	1m 47s
run-demo	11m 30s
	21m 14s

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