studio - fixing padding of codeMirror fields to match height of others given new line height

cms/static/sass/_settings.scss

@@ -699,7 +699,7 @@ body.course.settings {
         @include box-sizing(border-box);
         @include box-shadow(0 1px 2px rgba(0, 0, 0, .1) inset);
         @include linear-gradient($lightGrey, tint($lightGrey, 90%));
-        padding: 6px 8px;
+        padding: 1px 8px;
         border: 1px solid $mediumGrey;
         border-radius: 2px;
         background-color: $lightGrey;