Decrease the font weight of the response instructions from 600 to 500

Author: robertpiosik

packages/ui/src/components/editor/panel/ResponsePreview/ResponsePreview.module.scss

@@ -30,7 +30,7 @@
   overflow: hidden;
   font-size: 14px;
   line-height: 1.3;
-  font-weight: 600;
+  font-weight: 500;
 
   &--large {
     font-size: 16px;