add nesting to list styling (#681)

* add nesting to list styling

* add changeset

.changeset/swift-dryers-grin.md

@@ -0,0 +1,5 @@
+---
+'@microsoft/atlas-css': patch
+---
+
+The changeset is to fix a style inheritence problem in the list element which ensures that the list style is applied to all the list items.

css/src/atomics/list.scss

@@ -1,6 +1,10 @@
 .list-style-none {
 	list-style: none !important;
 
+	> li {
+		list-style: none !important;
+	}
+
 	&::marker,
 	&::-webkit-details-marker {
 		display: none;