Replace outdated classes

Author: iMattPro

styles/prosilver/template/event/overall_header_navigation_prepend.html

@@ -1,4 +1,4 @@
-<li class="no-bulletin">
+<li class="in-menu">
 	<a href="{{ U_PHPBB_SKELETON_EXT }}">
 		<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" style="position: relative; top: 2px; width: 14px; height: 14px; padding: 0 2px; fill: currentColor;"><!-- Font Awesome Pro 5.15.4 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license (Commercial License) --><path d="M256 0C114.6 0 0 100.3 0 224c0 70.1 36.9 132.6 94.5 173.7 9.6 6.9 15.2 18.1 13.5 29.9l-9.4 66.2c-1.4 9.6 6 18.2 15.7 18.2H192v-56c0-4.4 3.6-8 8-8h16c4.4 0 8 3.6 8 8v56h64v-56c0-4.4 3.6-8 8-8h16c4.4 0 8 3.6 8 8v56h77.7c9.7 0 17.1-8.6 15.7-18.2l-9.4-66.2c-1.7-11.7 3.8-23 13.5-29.9C475.1 356.6 512 294.1 512 224 512 100.3 397.4 0 256 0zm-96 320c-35.3 0-64-28.7-64-64s28.7-64 64-64 64 28.7 64 64-28.7 64-64 64zm192 0c-35.3 0-64-28.7-64-64s28.7-64 64-64 64 28.7 64 64-28.7 64-64 64z"/></svg>
 		{{ lang('PHPBB_SKELETON_EXT') }}