feat: Add distribution test tracking (#5588)

packages/editor-ui/src/constants.ts

@@ -520,4 +520,14 @@ export const ONBOARDING_EXPERIMENT = {
 	variant: 'variant',
 };
 
-export const EXPERIMENTS_TO_TRACK = [ASSUMPTION_EXPERIMENT.name, ONBOARDING_EXPERIMENT.name];
+export const DISTRIBUTION_EXPERIMENT = {
+	name: '001_distribution_test',
+	control: 'control',
+	variant: 'variant',
+};
+
+export const EXPERIMENTS_TO_TRACK = [
+	DISTRIBUTION_EXPERIMENT.name,
+	ASSUMPTION_EXPERIMENT.name,
+	ONBOARDING_EXPERIMENT.name,
+];