fix aspect ratio of pip on tv (#628)

azure-communication-ui/calling/src/main/java/com/azure/android/communication/ui/calling/presentation/fragment/calling/localuser/LocalParticipantView.kt

@@ -81,6 +81,7 @@ internal class LocalParticipantView : ConstraintLayout {
         if (isAndroidTV(context)) {
             pipAvatar.avatarSize = AvatarSize.MEDIUM
             guideline.setGuidelinePercent(0.9f)
+            (localPipWrapper.layoutParams as LayoutParams).dimensionRatio = "4:3"
         }
     }