Consolidate toolbar_basic usage to single location.

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

@@ -1,7 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <androidx.appcompat.widget.Toolbar xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
-    android:id="@+id/toolbar_basic"
     android:layout_width="match_parent"
     android:layout_height="?attr/actionBarSize"
     android:background="@null"

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

@@ -129,6 +129,7 @@
         android:id="@+id/toolbar_basic"
         android:layout_width="match_parent"
         android:layout_height="?attr/actionBarSize"
+        android:inflatedId="@id/toolbar_basic"
         android:layout="@layout/conversation_list_archive_toolbar"
         android:minHeight="?attr/actionBarSize"
         app:layout_constraintTop_toTopOf="parent" />