Integrations: Update delete modal to support custom verify prompt (#1… #1568

Job	Run time
Run test group of app_analytics_test	19m 34s
Run test group of datasources_test	10m 45s
Run test group of event_analytics_test	22m 20s
Run test group of integrations_test	11m 25s
Run test group of metrics_analytics_test	11m 31s
Run test group of notebooks_test	13m 44s
Run test group of panels_test	14m 58s
Run test group of trace_analytics_test	27m 52s
	2h 12m 9s

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