fix stylelint errors

Author: mojavelinux

src/css/component-frame.css

@@ -52,9 +52,7 @@
   top: 60px;
   border-radius: 4px;
   z-index: 1;
-  border-radius: 4px;
-  z-index: 1;
-  box-shadow: 0px 3px 10px -4px var(--color-brand-gray8);
+  box-shadow: 0 3px 10px -4px var(--color-brand-gray8);
 }
 
 .frame-dropdown .frame-dropdown-list {