Fix lint errors

Author: kkartunov

src/shared/components/Contentful/Tabs/themes/underline.scss

@@ -48,7 +48,7 @@ $text-color-pannel: #4a4a4a;
 
   &:hover,
   &.selected {
-    border-bottom: 5px solid #43D7B0;
+    border-bottom: 5px solid #43d7b0;
     border-radius: 3px;
   }