Adjust .ai-icon class in shared UI library
>>> [!note] Migrated issue
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Reported by: [bbruno](https://www.drupal.org/user/3691195)
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<h3 id="summary-problem-motivation">Problem/Motivation</h3>
<p>Identified in <a href="https://www.drupal.org/project/ai_context/issues/3569776#comment-16504747">https://www.drupal.org/project/ai_context/issues/3569776#comment-16504747</a></p>
<blockquote><p>I think we should open a ticket on AI module for the pill changes and for a fix to the icon as well. I noticed that the icon is missing its base class but when applying the base class (.ai-icon) the css property background-size: 100% is breaking the ai-icon--file as that icon is not square and the fix you applied background-size: contain; should be used instead.</p></blockquote>
<p>As mentioned above, the current `.ai-icon` class contains `background-size: 100%`, and since the same class contains fixed square dimensions - this creates an overflow when used on non-square icons</p>
<h3 id="summary-proposed-resolution">Proposed resolution</h3>
<p>Investigate if `background-size: contain; ` could fix this issue, while not impacting existing use cases of the class within AI Core itself</p>
<h3 id="summary-ai-usage">AI usage (if applicable)</h3>
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