Material3: Add drag handle to sscope dialog

Signed-off-by: Andy Scherzinger <info@andy-scherzinger.de>

app/src/main/res/layout/dialog_scope.xml

@@ -1,10 +1,11 @@
-<?xml version="1.0" encoding="utf-8"?><!--
+<?xml version="1.0" encoding="utf-8"?>
+<!--
   ~ Nextcloud Talk application
   ~
   ~ @author Tobias Kaminsky
   ~ @author Andy Scherzinger
   ~ Copyright (C) 2021 Tobias Kaminsky <tobias.kaminsky@nextcloud.com>
-  ~ Copyright (C) 2021-2022 Andy Scherzinger <info@andy-scherzinger.de>
+  ~ Copyright (C) 2021-2023 Andy Scherzinger <info@andy-scherzinger.de>
   ~
   ~ This program is free software: you can redistribute it and/or modify
   ~ it under the terms of the GNU General Public License as published by
@@ -21,12 +22,16 @@
   -->
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
+    style="@style/Widget.Material3.BottomSheet"
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
     android:orientation="vertical"
-    android:paddingTop="@dimen/standard_half_padding"
     android:paddingBottom="@dimen/standard_half_padding">
 
+    <com.google.android.material.bottomsheet.BottomSheetDragHandleView
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content" />
+
     <LinearLayout
         android:id="@+id/scope_private"
         android:layout_width="match_parent"