Add back the 'add new child' buttons/links to the reorder children page
>>> [!note] Migrated issue
<!-- Drupal.org comment -->
<!-- Migrated from issue #2886680. -->
Reported by: [larowlan](https://www.drupal.org/user/395439)
>>>
<h3 id="summary-problem-motivation">Problem/Motivation</h3>
<p>We didn't port the 'add new {child node type}' link functionality to the 8.x-2.x branch</p>
<h3 id="summary-proposed-resolution">Proposed resolution</h3>
<p>Lets do it</p>
<h3 id="summary-remaining-tasks">Remaining tasks</h3>
<h3 id="summary-ui-changes">User interface changes</h3>
<h3 id="summary-api-changes">API changes</h3>
<h3 id="summary-data-model-changes">Data model changes</h3>
issue