Fix coding standards, cspell and phpstan
>>> [!note] Migrated issue
<!-- Drupal.org comment -->
<!-- Migrated from issue #3585799. -->
Reported by: [a.dmitriiev](https://www.drupal.org/user/3235287)
Related to !3
>>>
<h3 id="summary-problem-motivation">Problem/Motivation</h3>
<p>Recently the Gitlab CI support was added to the project. It revealed that there are some phpcs, cspell and phpstan issues.</p>
<h4 id="summary-steps-reproduce">Steps to reproduce</h4>
<p>Check the latest pipelines, for example here <a href="https://git.drupalcode.org/project/ai_content_review/-/pipelines/799687">https://git.drupalcode.org/project/ai_content_review/-/pipelines/799687</a> .</p>
<h3 id="summary-proposed-resolution">Proposed resolution</h3>
<p>Follow the instructions in the failed jobs to fix the coding standards, cspell, phpstan, etc.</p>
issue