chore(badge): update badge shape

Author: SisIvanova

src/app/data-display/badge/badge-sample-2/badge-sample-2.component.html

@@ -1,4 +1,4 @@
 <div class="wrapper">
-    <igx-avatar icon="person" [roundShape]="true" size="small"></igx-avatar>
-    <igx-badge icon="check" type="success"></igx-badge>
+    <igx-avatar icon="person" size="small"></igx-avatar>
+    <igx-badge icon="check" type="success" shape="square"></igx-badge>
 </div>