Merge branch 'NXSTAGE-1249-heading-improvements' into 'development'

NXSTAGE-1249: Update line width and paragraph text top spacing

See merge request julkiset-sivut/design-system-lib!128

src/components/heading/heading.scss

@@ -78,7 +78,7 @@
 
   &:after {
     background-color: transparent;
-    border-bottom: 3px solid var(--grayscale-dark);
+    border-bottom: 6px solid var(--grayscale-dark);
     content: ' ';
     display: flex;
     height: 2px;

src/components/paragraph-text/paragraph-text.scss

@@ -66,4 +66,9 @@
     margin-top: 0;
     padding-top: 0;
   }
+
+  // When hy-paragraph-text is the first child it will not add spacing to top. Will fix heading + text spacing issue.
+  &:first-child {
+    margin-top: 0 !important;
+  }
 }