Simplify runner registration token resetting

This icommit adds several changes related to the same topic
- resetting a Runner registration token:

1. On Project settings page it adds a button for resetting the
   registration token and it removes the Runner token field
   that was confusing all GitLab users.

2. On Group settings page it adds the same button for resetting
   the registration token.

3. On Admin Runners settings page it moves the button to the same
   place as in Project and Group settings and it changes slightly
   the page layout to make it more similar to Group and Project
   setting pages.

4. It refactorizes a little the partial that prints runner
   registration description. Thanks to this Project, Group
   and Admin settings of the Runner are re-using the same
   code to generate the button.

5. Updates the translations of changed text.

3 files changed, 5 insertions, 2 deletions

diff --git a/config/routes/admin.rb b/config/routes/admin.rb
index 7489b01ded6..7cdaa2daa14 100644
--- a/config/routes/admin.rb
+++ b/config/routes/admin.rb
@@ -107,7 +107,7 @@ namespace :admin do
   resource :application_settings, only: [:show, :update] do
     resources :services, only: [:index, :edit, :update]
     get :usage_data
-    put :reset_runners_token
+    put :reset_registration_token
     put :reset_health_check_token
     put :clear_repository_check_states
     get :integrations, :repository, :templates, :ci_cd, :reporting, :metrics_and_profiling, :network, :geo, :preferences
diff --git a/config/routes/group.rb b/config/routes/group.rb
index 893ec8a4e58..602bbe837cf 100644
--- a/config/routes/group.rb
+++ b/config/routes/group.rb
@@ -27,7 +27,9 @@ constraints(::Constraints::GroupUrlConstrainer.new) do
         as: :group,
         constraints: { group_id: Gitlab::PathRegex.full_namespace_route_regex }) do
     namespace :settings do
-      resource :ci_cd, only: [:show], controller: 'ci_cd'
+      resource :ci_cd, only: [:show], controller: 'ci_cd' do
+        put :reset_registration_token
+      end
     end
 
     resource :variables, only: [:show, :update]
diff --git a/config/routes/project.rb b/config/routes/project.rb
index 8a5310b5c23..ef1bc4bbf42 100644
--- a/config/routes/project.rb
+++ b/config/routes/project.rb
@@ -437,6 +437,7 @@ constraints(::Constraints::ProjectUrlConstrainer.new) do
         get :members, to: redirect("%{namespace_id}/%{project_id}/project_members")
         resource :ci_cd, only: [:show, :update], controller: 'ci_cd' do
           post :reset_cache
+          put :reset_registration_token
         end
         resource :integrations, only: [:show]
         resource :repository, only: [:show], controller: :repository do