Defaulted roadmap_settings to true

Roadmap settings have been moved to the right sidebar.
Added ability to see progress by count instead of just weight.

Changelog: added

config/feature_flags/development/roadmap_settings.yml

@@ -5,4 +5,4 @@ rollout_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/350830
 milestone: '14.8'
 type: development
 group: group::product planning
-default_enabled: false
+default_enabled: true