fixing stylelint issues

Author: gavinbarron

packages/mgt-components/src/styles/shared-styles.scss

@@ -21,15 +21,20 @@ $focus-ring-style: var(--focus-ring-style, auto);
   --theme-primary-color: #0078d7;
   --theme-dark-color: #005a9e;
 }
+
 :focus-visible {
   // ensure default is correctly set for Firefox
   outline-color: var(--focus-ring-color, Highlight);
+
   // ensure default is set for other browsers
+  /* stylelint-disable-next-line declaration-block-no-duplicate-properties */
   outline-color: var(--focus-ring-color, -webkit-focus-ring-color);
+  
   // set the style of the focus ring
   // this needs to be something other than auto in Firefox to use the custom color
   outline-style: $focus-ring-style;
 }
+
 .ms-icon {
   display: inline-block;
   font-family: $font-icon;