[a11y] Tabledrag handle and "dragged" bar not visible in forced colors (high contrast) mode
>>> [!note] Migrated issue
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<!-- Migrated from issue #3374131. -->
Reported by: [bnjmnm](https://www.drupal.org/user/2369194)
Related to !277
>>>
<h3 id="summary-problem-motivation">Problem/Motivation</h3>
<p><img src="https://www.drupal.org/files/issues/2023-07-12/tabledrag-before.png" alt="" width="400"></p>
<h4 id="summary-steps-reproduce">Steps to reproduce</h4>
<h3 id="summary-proposed-resolution">Proposed resolution</h3>
<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