layout_chain_settings.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <include
        layout="@layout/layout_appbar"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />

    <androidx.fragment.app.FragmentContainerView
        android:id="@+id/settings"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />

    <LinearLayout
        android:id="@+id/list_cell"
        android:layout_width="match_parent"
        android:layout_height="0.5dp"
        android:background="@android:color/darker_gray"
        android:orientation="horizontal" />

    <androidx.recyclerview.widget.RecyclerView
        android:id="@+id/configuration_list"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:clipToPadding="false"
        android:scrollbarSize="0dp"
        android:padding="4dp"
        android:overScrollMode="never" />

</LinearLayout>