Add tracking and metrics to admin groups page

app/components/layouts/page_heading_component.haml

-.gl-flex.gl-flex-wrap.gl-items-center.gl-justify-between.gl-gap-y-2.gl-gap-x-5.gl-my-5
+.gl-flex.gl-flex-wrap.gl-items-center.gl-justify-between.gl-gap-y-2.gl-gap-x-5.gl-my-5{ @options }
   %h1.gl-heading-1{ class: '!gl-m-0', data: { testid: 'page-heading' } }
     = heading || @heading
 

app/components/layouts/page_heading_component.rb

@@ -3,8 +3,10 @@
 module Layouts
   class PageHeadingComponent < ViewComponent::Base
     # @param [String] heading
-    def initialize(heading)
+    # @param [Hash] options
+    def initialize(heading, options: {})
       @heading = heading
+      @options = options
     end
 
     renders_one :heading

app/views/admin/groups/index.html.haml

 - page_title _("Groups")
 - add_page_specific_style 'page_bundles/search'
 
-= render ::Layouts::PageHeadingComponent.new(_('Groups')) do |c|
+= render ::Layouts::PageHeadingComponent.new(_('Groups'), options: { data: { event_tracking_load: 'true', event_tracking: 'view_admin_groups_pageload' } }) do |c|
   - c.with_actions do
     = link_button_to new_admin_group_path, variant: :confirm do
       = _('New group')

config/events/view_admin_groups_pageload.yml

+---
+description: Tracks pageviews for the admin groups page
+internal_events: true
+action: view_admin_groups_pageload
+identifiers:
+- user
+product_group: personal_productivity
+milestone: '17.2'
+introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/156807
+distributions:
+- ce
+- ee
+tiers:
+- free
+- premium
+- ultimate

config/metrics/counts_28d/count_distinct_user_id_from_view_admin_groups_pageload_monthly.yml

+---
+key_path: redis_hll_counters.count_distinct_user_id_from_view_admin_groups_pageload_monthly
+description: Monthly count of unique users to the admin groups page
+product_group: personal_productivity
+performance_indicator_type: []
+value_type: number
+status: active
+milestone: '17.2'
+introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/156807
+time_frame: 28d
+data_source: internal_events
+data_category: optional
+distribution:
+- ce
+- ee
+tier:
+- free
+- premium
+- ultimate
+events:
+- name: view_admin_groups_pageload
+  unique: user.id

config/metrics/counts_28d/count_total_view_admin_groups_pageload_monthly.yml

+---
+key_path: counts.count_total_view_admin_groups_pageload_monthly
+description: Monthly count of users to the admin groups page
+product_group: personal_productivity
+performance_indicator_type: []
+value_type: number
+status: active
+milestone: '17.2'
+introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/156807
+time_frame: 28d
+data_source: internal_events
+data_category: optional
+distribution:
+- ce
+- ee
+tier:
+- free
+- premium
+- ultimate
+events:
+- name: view_admin_groups_pageload

config/metrics/counts_7d/count_distinct_user_id_from_view_admin_groups_pageload_weekly.yml

+---
+key_path: redis_hll_counters.count_distinct_user_id_from_view_admin_groups_pageload_weekly
+description: Weekly count of unique users to the admin groups page
+product_group: personal_productivity
+performance_indicator_type: []
+value_type: number
+status: active
+milestone: '17.2'
+introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/156807
+time_frame: 7d
+data_source: internal_events
+data_category: optional
+distribution:
+- ce
+- ee
+tier:
+- free
+- premium
+- ultimate
+events:
+- name: view_admin_groups_pageload
+  unique: user.id

config/metrics/counts_7d/count_total_view_admin_groups_pageload_weekly.yml

+---
+key_path: counts.count_total_view_admin_groups_pageload_weekly
+description: Weekly count of users to the admin groups page
+product_group: personal_productivity
+performance_indicator_type: []
+value_type: number
+status: active
+milestone: '17.2'
+introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/156807
+time_frame: 7d
+data_source: internal_events
+data_category: optional
+distribution:
+- ce
+- ee
+tier:
+- free
+- premium
+- ultimate
+events:
+- name: view_admin_groups_pageload