Issue #3432109: Add new route /my-settings to redirect users to the…

…ir settings page

In order to help users going to their settings page, this commit is adding:

- A new custom route which path is `/my-settings`, using the core controller `\Drupal\user\Controller\UserController::userEditPage` so we don't need to maintain in ourselves;
- A Behat test to check if the route is properly redirection users to `/users/*/edit`.

modules/social_features/social_user/social_user.routing.yml

@@ -47,3 +47,10 @@ social_user.stream:
   requirements:
     _user_is_logged_in: 'TRUE'
     _custom_access: '\Drupal\social_user\Controller\SocialUserController::accessUsersPages'
+
+social_user.my_settings:
+  path: '/my-settings'
+  defaults:
+    _controller: '\Drupal\user\Controller\UserController::userEditPage'
+  requirements:
+    _user_is_logged_in: 'TRUE'

tests/behat/features/capabilities/account/my-settings-page.feature

@@ -0,0 +1,12 @@
+@api
+Feature: Redirect user to their settings page
+  Benefit: To make it easier for users to access their settings page
+  Role: As a Authenticated
+  Goal/desire: I want to be redirected to "/user/*/edit" when I go to "/my-settings"
+
+  Scenario: A user is redirected to their settings page
+    Given I am logged in as a user with the "authenticated" role
+
+    When I go to "/my-settings"
+
+    Then the URL should match "^\/user\/[^\/]+\/edit$"