fix backgound overlay

Author: poolsoft

OsmAnd/src-carlauncher/res/layout/activity_car_launcher.xml

@@ -42,7 +42,7 @@
         android:id="@+id/widget_panel"
         android:layout_width="350dp"
         android:layout_height="0dp"
-        android:background="#111111"
+        android:background="@drawable/bg_gradient_overlay"
         android:layout_marginTop="0dp"
         android:elevation="20dp"
         android:visibility="gone"
@@ -55,7 +55,7 @@
         android:id="@+id/app_dock"
         android:layout_width="0dp"
         android:layout_height="54dp"
-        android:background="#111111"
+        android:background="@drawable/bg_gradient_overlay"
         android:elevation="8dp"
         app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintStart_toStartOf="parent"