chore(avatar): update samples with new shape

Author: SisIvanova

src/app/layouts/avatar/avatar-sample-1/avatar-sample-1.component.html

@@ -1 +1 @@
-<igx-avatar initials="JS" [roundShape]="true" size="medium"></igx-avatar>
+<igx-avatar initials="JS" shape="circle" size="medium"></igx-avatar>

src/app/layouts/avatar/avatar-sample-2/avatar-sample-2.component.html

@@ -1 +1 @@
-<igx-avatar src="assets/images/men/1.jpg" [roundShape]="true" size="large"></igx-avatar>
+<igx-avatar src="assets/images/men/1.jpg" shape="rounded" size="large"></igx-avatar>

src/app/layouts/avatar/avatar-sample-3/avatar-sample-3.component.html

@@ -3,9 +3,9 @@
         <igx-avatar initials="JS" size="medium"></igx-avatar>
     </div>
     <div class="avatar-sample">
-        <igx-avatar src="assets/images/men/1.jpg" [roundShape]="true" size="medium"></igx-avatar>
+        <igx-avatar src="assets/images/men/1.jpg" shape="rounded" size="medium"></igx-avatar>
     </div>
     <div class="avatar-sample icon">
-        <igx-avatar icon="person" [roundShape]="true" size="medium"></igx-avatar>
+        <igx-avatar icon="person" shape="circle" size="medium"></igx-avatar>
     </div>
 </article>

src/app/layouts/avatar/avatar-sample-4/avatar-sample-4.component.html

@@ -1 +1 @@
-<igx-avatar icon="person" [roundShape]="true" size="small"></igx-avatar>
+<igx-avatar icon="person" shape="rounded" size="small"></igx-avatar>

src/app/layouts/avatar/avatar-styling/avatar-styling.component.html

@@ -3,6 +3,6 @@
         <igx-avatar initials="JS" size="medium"></igx-avatar>
     </div>
     <div class="avatar-sample icon">
-        <igx-avatar icon="person" [roundShape]="true" size="medium"></igx-avatar>
+        <igx-avatar icon="person" shape="circle" size="medium"></igx-avatar>
     </div>
 </article>