Default enable VSA horizontal flow

Defaults the value_stream_analytics_path_navigation feature
flag on

doc/user/group/value_stream_analytics/index.md

@@ -193,17 +193,21 @@ GitLab allows users to create multiple value streams, hide default stages and cr
 
 ### Stage path
 
-> [Introduced](https://gitlab.com/gitlab-org/gitlab/-/issues/210315) in GitLab 13.0.
+> - [Introduced](https://gitlab.com/gitlab-org/gitlab/-/issues/210315) in GitLab 13.0.
+> - It's [deployed behind a feature flag](../../feature_flags.md), enabled by default.
+> - It's enabled on GitLab.com.
+> - For GitLab self-managed instances, GitLab administrators can opt to [disable it](../../../administration/feature_flags.md). **(FREE SELF)**
+
+![Value stream path navigation](img/vsa_path_nav_v13_10.png "Value stream path navigation")
 
-Stages are visually depicted as a horizontal process flow. Selecting a stage will update the
-the content below the value stream.
+Stages are visually depicted as a horizontal process flow. Selecting a stage updates the content below the value stream.
 
-This is disabled by default. If you have a self-managed instance, an
+This is enabled by default. If you have a self-managed instance, an
 administrator can [open a Rails console](../../../administration/troubleshooting/navigating_gitlab_via_rails_console.md)
-and enable it with the following command:
+and disable it with the following command:
 
 ```ruby
-Feature.enable(:value_stream_analytics_path_navigation)
+Feature.disable(:value_stream_analytics_path_navigation)
 ```
 
 ### Adding a stage

ee/app/controllers/groups/analytics/cycle_analytics_controller.rb

@@ -14,7 +14,7 @@ class Groups::Analytics::CycleAnalyticsController < Groups::Analytics::Applicati
 
   before_action do
     push_frontend_feature_flag(:cycle_analytics_scatterplot_enabled, default_enabled: true)
-    push_frontend_feature_flag(:value_stream_analytics_path_navigation, @group)
+    push_frontend_feature_flag(:value_stream_analytics_path_navigation, @group, default_enabled: :yaml)
     push_frontend_feature_flag(:value_stream_analytics_extended_form, @group, default_enabled: :yaml)
     render_403 unless can?(current_user, :read_group_cycle_analytics, @group)
   end

ee/changelogs/unreleased/281598-default-on-for-vsa-horizontal-flow.yml

+---
+title: Display VSA navigation as a horizontal flow
+merge_request: 56632
+author:
+type: added

ee/config/feature_flags/development/value_stream_analytics_path_navigation.yml

 ---
 name: value_stream_analytics_path_navigation
 introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/31069
-rollout_issue_url: 
+rollout_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/323982
 milestone: '13.0'
 type: development
 group: group::optimize
-default_enabled: false
+default_enabled: true