Rewrite StarredProjectsFinder to use ProjectsFinder

app/controllers/users_controller.rb

@@ -134,7 +134,7 @@ class UsersController < ApplicationController
   end
 
   def starred_projects
-    StarredProjectsFinder.new(user).execute(current_user)
+    StarredProjectsFinder.new(user, current_user: current_user).execute
   end
 
   def contributions_calendar

app/finders/starred_projects_finder.rb

 # frozen_string_literal: true
 
-class StarredProjectsFinder < UnionFinder
-  def initialize(user)
-    @user = user
-  end
-
-  # Finds the projects "@user" starred, limited to either public projects or
-  # projects visible to the given user.
-  #
-  # current_user - When given the list of the projects is limited to those only
-  #                visible by this user.
-  #
-  # Returns an ActiveRecord::Relation.
-  # rubocop: disable CodeReuse/ActiveRecord
-  def execute(current_user = nil)
-    segments = all_projects(current_user)
-
-    find_union(segments, Project).includes(:namespace).order_id_desc
-  end
-  # rubocop: enable CodeReuse/ActiveRecord
-
-  private
-
-  def all_projects(current_user)
-    projects = []
-
-    projects << @user.starred_projects.visible_to_user(current_user) if current_user
-    projects << @user.starred_projects.public_to_user(current_user)
-
-    projects
+class StarredProjectsFinder < ProjectsFinder
+  def initialize(user, params: {}, current_user: nil)
+    project_ids = user.starred_projects.includes(:creator).select(:id)
+    super(params: params, current_user: current_user, project_ids_relation: project_ids)
   end
 end