use primary color

Author: wxiaoguang

web_src/css/modules/navbar.css

@@ -105,7 +105,7 @@
   position: absolute;
   font-size: 10px;
   color: var(--color-white);
-  background: var(--color-red);
+  background: var(--color-primary);
   padding: 2px 4px;
   border-radius: 10px;
   top: -3px;