Plugins: Externalise Azure Monitor data source (#79545)

* Set up frontend linting for Azure

- Fix final frontend import
- Fix other lint issues

* Add Azure Monitor to backend linting

* Remove featuremgmt dependency

* Add intervalv2 to list of disallowed imports

* Remove config dependency

- Replace with function from azure-sdk

* Remove util dependency

* Duplicate interval functionality from core

* Add required backend wrappers

* Update frontend

* Add testing helper

* Add missing package

* Bump minimum grafana dependency

* Fix dependency

* Regen cue

* Fix lint

* Update expected response file

* Update import and dependency

pkg/services/pluginsintegration/plugins_integration_test.go

@@ -80,7 +80,7 @@ func TestIntegrationPluginManager(t *testing.T) {
 	tracer := tracing.InitializeTracerForTest()
 
 	hcp := httpclient.NewProvider()
-	am := azuremonitor.ProvideService(cfg, hcp, features)
+	am := azuremonitor.ProvideService(hcp)
 	cw := cloudwatch.ProvideService(cfg, hcp, features)
 	cm := cloudmonitoring.ProvideService(hcp, tracer)
 	es := elasticsearch.ProvideService(hcp, tracer)