Add integration installation to data sources flyout #1549

Job	Run time
Run test group of app_analytics_test	20m 46s
Run test group of datasources_test	11m 10s
Run test group of event_analytics_test	22m 52s
Run test group of integrations_test	11m 38s
Run test group of metrics_analytics_test	2m 10s
Run test group of notebooks_test	14m 47s
Run test group of panels_test	15m 44s
Run test group of trace_analytics_test	27m 32s
	2h 6m 39s

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