Flame Graph: Analyze with Grafana Assistant (#108684)

* Bare-bones mocked integration

* Create correct context based on the query

* Add data source name

* Do not bundle grafana/assistant with flame graph

* Rename component

* Add tests

* Mock grafana/assistant

* Update feature toggle and allow hiding the button

* Update deps

* Update types

* Update yarn.lock

* Fix typo in feature toggle description

* Enable grafanaAssistantInProfilesDrilldown by default

* Enable grafanaAssistantInProfilesDrilldown by default

* Show Analyze Flame Graph button only if there's context for the assistant

packages/grafana-flamegraph/src/utils.ts

@@ -0,0 +1,6 @@
+import { ChatContextItem } from '@grafana/assistant';
+import { DataFrame } from '@grafana/data';
+
+export function getAssistantContextFromDataFrame(data: DataFrame): ChatContextItem[] {
+  return data.meta?.custom?.assistantContext || [];
+}