[Catalog][Bottom App Bar] Apply M3 style to bottom sheet in bottom app bar demo.

Resolves #2692
Resolves #1700

GIT_ORIGIN_REV_ID=8d6d3a475eae177723fc44347e2fe97b74d419ba
PiperOrigin-RevId: 448328671

Author: manabu-nakamura

catalog/java/io/material/catalog/bottomappbar/res/layout/cat_bottomappbar_fragment.xml

@@ -44,9 +44,9 @@
 
   <FrameLayout
       android:id="@+id/bottom_drawer"
+      style="@style/Widget.Material3.BottomSheet"
       android:layout_width="match_parent"
       android:layout_height="wrap_content"
-      android:elevation="16dp"
       app:behavior_hideable="true"
       app:layout_behavior="@string/bottom_sheet_behavior">