Merge pull request #15613 from owncloud/allow-files-nav-icons

Allow files app nav entries to have a different icon class

apps/files/templates/appnavigation.php

@@ -3,7 +3,7 @@
 		<?php foreach ($_['navigationItems'] as $item) { ?>
 		<li data-id="<?php p($item['id']) ?>" class="nav-<?php p($item['id']) ?>">
 			<a href="<?php p(isset($item['href']) ? $item['href'] : '#') ?>"
-				class="nav-icon-<?php p($item['id']) ?> svg">
+				class="nav-icon-<?php p($item['icon'] !== '' ? $item['icon'] : $item['id']) ?> svg">
 				<?php p($item['name']);?>
 			</a>
 		</li>