OZG-2816 OZG-3135 Move z-index up for Bedienleiste

goofy-client/libs/ui/src/lib/ui/subnavigation/subnavigation.component.scss

@@ -28,7 +28,7 @@
 	top: 64px;
 	height: 48px;
 	width: 100%;
-	z-index: 1;
+	z-index: 2;
 	box-shadow: $shadow-bottom;
 	display: flex;
 	justify-content: flex-start;