Use routes and route parameters instead of paths in Controller

Problem/Motivation

In the Controller:

      $edit_url = Link::fromTextAndUrl(t('Edit'), Url::fromUri('internal:/admin/config/login/role_login_settings/edit/' . $login_menu_data->rl_id, $url_options))
        ->toString();
      $delete_url = Link::fromTextAndUrl(t('Delete'), Url::fromUri('internal:/admin/config/login/role_login_settings/delete/' . $login_menu_data->rl_id, $url_options))
        ->toString();

better use routes and route parameters instead of internal: Uri's. Much cleaner and less prone to security flaws.

Steps to reproduce

Proposed resolution

Remaining tasks

User interface changes

API changes

Data model changes