Add “groups” JS bundle

app/assets/javascripts/groups/index.js

+$(() => {
+  // Groups bundle
+});
\ No newline at end of file

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

@@ -2,6 +2,8 @@
 - header_title  "Groups", dashboard_groups_path
 = render 'dashboard/groups_head'
+= page_specific_javascript_bundle_tag('groups')
+
 - if @groups.empty?
   = render 'empty_state'
 - else

config/webpack.config.js

@@ -32,6 +32,7 @@ var config = {
     filtered_search:      './filtered_search/filtered_search_bundle.js',
     graphs:               './graphs/graphs_bundle.js',
     group:                './group.js',
+    groups:               './groups/index.js',
     groups_list:          './groups_list.js',
     issuable:             './issuable/issuable_bundle.js',
     issue_show:           './issue_show/index.js',