FairEmail/app/src/main/res/layout-w600dp-land/activity_view.xml

<androidx.drawerlayout.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/drawer_layout"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".ActivityView">

    <androidx.constraintlayout.widget.ConstraintLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <FrameLayout
            android:id="@+id/content_frame"
            android:layout_width="0dp"
            android:layout_height="match_parent"
            app:layout_constraintEnd_toStartOf="@+id/content_separator"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toTopOf="parent" />

        <View
            android:id="@+id/content_separator"
            android:layout_width="1dp"
            android:layout_height="match_parent"
            android:background="?attr/colorSeparator"
            app:layout_constraintEnd_toStartOf="@+id/content_pane"
            app:layout_constraintStart_toEndOf="@id/content_frame"
            app:layout_constraintTop_toTopOf="parent" />

        <FrameLayout
            android:id="@+id/content_pane"
            android:layout_width="0dp"
            android:layout_height="match_parent"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toEndOf="@id/content_separator"
            app:layout_constraintTop_toTopOf="parent" />

        <androidx.constraintlayout.widget.Group
            android:id="@+id/grpPane"
            android:layout_width="0dp"
            android:layout_height="0dp"
            android:visibility="gone"
            app:constraint_referenced_ids="content_separator,content_pane" />
    </androidx.constraintlayout.widget.ConstraintLayout>

    <androidx.constraintlayout.widget.ConstraintLayout
        android:id="@+id/drawer_container"
        android:layout_width="270dp"
        android:layout_height="match_parent"
        android:layout_gravity="start"
        android:background="?attr/colorDrawerBackground">

        <ListView
            android:id="@+id/drawer_menu"
            android:layout_width="match_parent"
            android:layout_height="0dp"
            android:choiceMode="singleChoice"
            android:divider="@android:color/transparent"
            android:dividerHeight="0dp"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toTopOf="parent" />
    </androidx.constraintlayout.widget.ConstraintLayout>
</androidx.drawerlayout.widget.DrawerLayout>