[Logs UI] Implement “no data” check to drive the “no data screens” for Logs

[paulb-elastic]

This PR will add new “no data” screens across the various Observability apps, however this relies on each solution implementing a check that there is no data, which is that this issue is covering.

ACs:

• Implement a check as described in [Observability] New "No Data" screens #107709 that identifies when data has ever been ingested into Logs

[elasticmachine]

Pinging @elastic/logs-metrics-ui (Team:logs-metrics-ui)

[weltenwort]

ℹ️ For the Logs UI indices this check already exists and the values is exposed as sourceStatus.logIndexStatus in the return value of the useLogSourceContext() hook:

kibana/x-pack/plugins/infra/public/containers/logs/log_source/log_source.ts

Lines 196 to 200 in b1a81bb

	isResolvingSourceConfiguration,
	// Source status (denotes the state of the indices, e.g. missing)
	sourceStatus,
	loadSourceStatus,
	// Source configuration (represents the raw attributes of the source configuration)

It can be one of missing, empty or available.