fix issue #4: add option to hide the logo

templates/css/stylesheet.php

@@ -0,0 +1,24 @@
+:root {
+    <?php foreach ($_['vars'] as $key => $value): ?>
+        <?php if ($key === 'opener'): ?>
+            --side-menu-<?php echo $key ?>: url('../img/<?php echo $value ?>.svg');
+        <?php else: ?>
+            --side-menu-<?php echo $key ?>: <?php echo $value ?>;
+        <?php endif; ?>
+    <?php endforeach; ?>
+}
+
+<?php if ($_['display-logo'] === false): ?>
+.side-menu-logo {
+    display: none;
+}
+
+.side-menu-header {
+    height: 50px;
+}
+
+.side-menu-apps-list {
+    height: calc(100vh - 60px);
+    top: 60px;
+}
+<?php endif; ?>