Add book outline operation
>>> [!note] Migrated issue
<!-- Drupal.org comment -->
<!-- Migrated from issue #3573793. -->
Reported by: [codebymikey](https://www.drupal.org/user/3573206)
Related to !162 !163
>>>
<h3 id="summary-problem-motivation">Problem/Motivation</h3>
<p>When viewing books, it'd be nice if the Book outline was also available as an operation.</p>
<h4 id="summary-steps-reproduce">Steps to reproduce</h4>
<p>View books under the <code>/admin/structure/book</code> page.</p>
<h3 id="summary-proposed-resolution">Proposed resolution</h3>
<p>Add a new operation for the <code>entity.node.book_outline_form</code> route, so that they can easily go to the Outline, and potentially move the child node into a different Book.</p>
<h3 id="summary-remaining-tasks">Remaining tasks</h3>
<p>Provide MR.</p>
<h3 id="summary-ui-changes">User interface changes</h3>
<p>N/A</p>
issue