Set accessibility pane title for right pane on updating content.

This will let users know that content appeared on right when they
selected an option on left.

Note: This is announced _only_ when content changes.

Bug: 324073588
Test: Manual with talkback
Flag: N/A
Change-Id: Icec3242d8f250f6d19e082a39927165c7b8fc86a

res/values-ldrtl/strings.xml

@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+/*
+* Copyright (C) 2008 The Android Open Source Project
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*      http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+-->
+
+<resources xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
+    <!-- General -->
+    <skip />
+
+    <!-- accessibilityPaneTitle for the right pane when showing suggested widgets. -->
+    <string name="widget_picker_right_pane_accessibility_title"><xliff:g id="selected_header" example="Calendar">%1$s</xliff:g> widgets on left, search and options on right</string>
+</resources>