Updated Ruby variable name

Fixed Ruby code based on review feedback

app/controllers/projects/project_members_controller.rb

@@ -5,7 +5,7 @@ class Projects::ProjectMembersController < Projects::ApplicationController
   before_action :authorize_admin_project_member!, except: [:index, :leave, :request_access]
 
   def index
-    @groups = @project.project_group_links
+    @group_links = @project.project_group_links
 
     @project_members = @project.project_members
     @project_members = @project_members.non_invite unless can?(current_user, :admin_project, @project)
@@ -14,9 +14,7 @@ class Projects::ProjectMembersController < Projects::ApplicationController
       users = @project.users.search(params[:search]).to_a
       @project_members = @project_members.where(user_id: users)
 
-      group_ids = @groups.pluck(:group_id)
-      group_ids = Group.where(id: group_ids).search(params[:search]).to_a
-      @groups = @project.project_group_links.where(group_id: group_ids)
+      @group_links = @project.project_group_links.where(group_id: @project.invited_groups.search(params[:search]).select(:id))
     end
 
     @project_members = @project_members.order(access_level: :desc).page(params[:page])

app/views/projects/project_members/_groups.html.haml

@@ -2,8 +2,8 @@
   .panel-heading
     Groups with access to
     %strong #{@project.name}
-    %span.badge= groups.size
+    %span.badge= group_links.size
   %ul.content-list
-    - @groups.each do |group_link|
+    - group_links.each do |group_link|
       - group = group_link.group
       = render 'shared/members/group', group_link: group_link, group: group

app/views/projects/project_members/index.html.haml

@@ -21,8 +21,8 @@
         = search_field_tag :search, params[:search], { placeholder: 'Find existing members by name', class: 'form-control', spellcheck: false }
         %button.member-search-btn{ type: "submit", "aria-label" => "Submit search" }
           = icon("search")
-  - if @groups.size > 0
-    = render 'groups', groups: @groups
+  - if @group_links.size > 0
+    = render 'groups', group_links: @group_links
 
   = render 'team', members: @project_members
   = paginate @project_members, theme: "gitlab"