Minor improvements to packages UI code

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

config/routes/project.rb

@@ -311,7 +311,7 @@ constraints(::Constraints::ProjectUrlConstrainer.new) do
         get 'archive/*id', constraints: { format: Gitlab::PathRegex.archive_formats_regex, id: /.+?/ }, to: 'repositories#archive', as: 'archive'
 
         ## EE-specific
-        resources :packages, only: [:index, :show, :destroy], module: 'packages'
+        resources :packages, only: [:index, :show, :destroy], module: :packages
         ## EE-specific
 
         resources :jobs, only: [:index, :show], constraints: { id: /\d+/ } do

doc/administration/maven_packages.md

@@ -2,7 +2,7 @@
 
 > **Notes:**
 - [Introduced][ee-5811] in GitLab 11.3.
-- This document is about the admin guide. To learn how to use GitLab Maven 
+- This document is about the admin guide. Learn how to use GitLab Maven 
   repository from [user documentation](../user/project/maven_packages.md).
 
 When enabled, every project in GitLab will have its own space to store Maven packages.
@@ -11,7 +11,7 @@ When enabled, every project in GitLab will have its own space to store Maven pac
 
 **Omnibus GitLab installations**
 
-# TODO
+# TODO: Update this section once https://gitlab.com/gitlab-org/gitlab-ee/issues/7253 is resolved
 
 **Installations from source**
 

ee/spec/features/projects/packages_spec.rb

@@ -3,7 +3,6 @@ require 'spec_helper'
 describe 'Packages' do
   let(:user) { create(:user) }
   let(:project) { create(:project) }
-  let(:package) { create(:maven_package, project: project) }
 
   before do
     sign_in(user)
@@ -19,6 +18,8 @@ describe 'Packages' do
   end
 
   context 'when there are packages' do
+    let!(:package) { create(:maven_package, project: project) }
+
     before do
       package