Styling for untagged filter.

services/web/public/stylesheets/app/project-list.less

@@ -153,6 +153,13 @@ ul.folders-menu {
 				line-height: 1.4;
 			}
 		}
+		.tag-untagged {
+			font-style: italic;
+			&:hover,
+			&:focus {
+				text-decoration: none;
+			}
+		}
 		.tag-menu {
 			> a {
 				border: 1px solid @gray;