Bottom sheet improvements

app/src/main/res/drawable/sheet_toolbar_background.xml

@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="utf-8"?>
+<layer-list
+	xmlns:android="http://schemas.android.com/apk/res/android">
+	<item
+		android:left="-2dp"
+		android:right="-2dp"
+		android:top="-2dp">
+		<shape>
+			<solid android:color="@android:color/transparent" />
+			<stroke
+				android:width="1dp"
+				android:color="?android:attr/divider" />
+		</shape>
+	</item>
+</layer-list>