Merge branch 'NXSTAGE-1419-h2-size' into 'development'

NXSTAGE-1419: Update h2 sizing

See merge request julkiset-sivut/design-system-lib!158

src/components/heading/heading.scss

@@ -148,7 +148,7 @@ h1.hy-heading__introduction {
 .hy-heading__container__common {
   h2.hy-heading__introduction,
   h2.hy-heading__landingsection {
-    @include breakpoint($extrawide) {
+    @include breakpoint($narrow) {
       @include font-size(34px, 40px);
       letter-spacing: -0.85px;
     }
@@ -188,7 +188,7 @@ h1.hy-heading__introduction {
 .hy-heading__container__large {
   h2.hy-heading__introduction,
   h2.hy-heading__landingsection {
-    @include breakpoint($extrawide) {
+    @include breakpoint($narrow) {
       @include font-size(34px, 40px);
       letter-spacing: -0.85px;
     }