[D9] Termef

For these applications, we need a project where, in at least the branch used for the application, most of the commits (if not all the commits) have been done from the user who applies.

The purpose of these applications is reviewing a project to understand what the user who applies understands about writing secure code that follows the Drupal coding standards and correctly uses the Drupal API. When most of the code has been written by another user, this review cannot be easily done.

• What follows is a quick review of the project; it doesn't mean to be complete
• For every point, the review doesn't make a complete list of lines that should be fixed, but an example of what is wrong in the code
• A review is about code that doesn't follow the coding standards, contains possible security issue, or doesn't correctly use the Drupal API; if a point isn't about that, it makes it clear

The master branch isn't used in Drupal.org projects. The other branch needs to be made the default one (if it's not already) and the master branch be deleted.

    $form['mode'] = [
      '#type' => 'radios',
      '#title' => 'Mode de recherche',
      '#options' => [
        'begin' => $this->t('début'),
        'exact' => $this->t('exact'),
      ],

Strings shown to the users must be translatable.

infobox:
  version: VERSION

VERSION is used only by Drupal core modules.

termef.config_form:
  path: '/admin/config/content/termef'
  defaults:
    _form: '\Drupal\termef\Form\TermefConfigurationForm'
    _title: 'Termef'
    _description: 'Paramétrage du service TerMef'

The description must be in English, as it's translated and translation only works for English.

    $warning[] = $this->t('Send a message to');
    $warning[] = sprintf('<a href="mailto:%s>%s</a>', 'terminologie@finances.gouv.fr', 'terminologie@finances.gouv.fr');
    $warning[] = $this->t('to request that it be added.');

Instead of splitting the string into 3 pieces, it should use t()-placeholders.

Thank you for your contribution! I am going to update your account.

These are some recommended readings to help with excellent maintainership:

• Dries' post on Responsible maintainers
• Best practices for creating and maintaining projects
• Maintaining a drupal.org project with Git
• Commit messages - providing history and credit
• Release naming conventions.
• Helping maintainers in the issue queues

You can find more contributors chatting on the IRC #drupal-contribute channel. So, come hang out and stay involved.
Thank you, also, for your patience with the review process.
Anyone is welcome to participate in the review process. Please consider reviewing other projects that are pending review. I encourage you to learn more about that process and join the group of reviewers.