Tempo: Basic PoC of the upcoming TraceQL editor in Explore (#54028)

* First working version of the TraceQL editor with syntax highlighting and autocomplete

* Add feature flag around the new editor option

* Fix tests and cleanup

* Fix misspelling

pkg/services/featuremgmt/registry.go

@@ -262,5 +262,10 @@ var (
 			Description: "Replaces whitelabeling with the new custom branding feature",
 			State:       FeatureStateAlpha,
 		},
+		{
+			Name:        "traceqlEditor",
+			Description: "Show the TraceQL editor in the explore page",
+			State:       FeatureStateAlpha,
+		},
 	}
 )

pkg/services/featuremgmt/toggles_gen.go

@@ -194,4 +194,8 @@ const (
 	// FlagCustomBranding
 	// Replaces whitelabeling with the new custom branding feature
 	FlagCustomBranding = "customBranding"
+
+	// FlagTraceqlEditor
+	// Show the TraceQL editor in the explore page
+	FlagTraceqlEditor = "traceqlEditor"
 )