Match the app bar's overflow menu item past its new class

Follow-up to menu-item's move to the interaction classes (this batch): the
app bar's own test anchored a menu item's link right after <a, which the
item's new class="md-state-layer md-focus-ring" now precedes.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Qwx5USif3wFFmxtHg5U1g9

tests/Feature/Components/AppBarTest.php

@@ -76,7 +76,7 @@ it('keeps two trailing icon buttons below medium and four from it, the rest in a
         ->and(preg_match_all('/role="menu"\s+data-md-menu-popover\s+data-md-position="bottom-end"\s+aria-label="More options"/', $html))->toBe(2)
         // Below medium: all but the first.
         ->and($compact)
-        ->toMatch('/<a data-md-menu-item[^>]*role="menuitem" tabindex="-1" href="\/shares\/1\/share"/')
+        ->toMatch('/<a class="md-state-layer md-focus-ring" data-md-menu-item[^>]*role="menuitem" tabindex="-1" href="\/shares\/1\/share"/')
         ->toMatch('/role="menuitemcheckbox" aria-checked="true"[^>]*wire:click="star"/')
         ->toMatch('/role="menuitem"[^>]*wire:click="archive"/')
         ->toMatch('/role="menuitem" aria-disabled="true"/')