A11y fix for all widgets tray (Part 1 / n)

Mark some image view unimportant for accessibility.
Still need to update the content description for widget list
header to describe the expand / collapse action.

Test: Navigate all widgets tray with talkback enabled.

Bug: 183120145
Change-Id: I1801d8351ac7f22a0135a96a36de706377781b31

res/layout/widget_cell_content.xml

@@ -24,6 +24,7 @@
         android:layout_width="wrap_content"
         android:layout_height="0dp"
         android:layout_weight="1"
+        android:importantForAccessibility="no"
         android:layout_marginVertical="8dp" />
 
     <!-- The name of the widget. -->

res/layout/widgets_full_sheet_paged_view.xml

@@ -16,11 +16,6 @@
 <merge xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:launcher="http://schemas.android.com/apk/res-auto">
 
-    <include layout="@layout/personal_work_tabs"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:layout_marginHorizontal="16dp" />
-
     <com.android.launcher3.workprofile.PersonalWorkPagedView
         android:id="@+id/widgets_view_pager"
         android:layout_width="match_parent"
@@ -43,4 +38,8 @@
 
     </com.android.launcher3.workprofile.PersonalWorkPagedView>
 
+    <include layout="@layout/personal_work_tabs"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginHorizontal="16dp" />
 </merge>

res/layout/widgets_list_row_header.xml

@@ -71,6 +71,7 @@
         android:layout_gravity="center_vertical"
         android:layout_alignParentEnd="true"
         android:clickable="false"
+        android:importantForAccessibility="no"
         android:button="@drawable/widgets_tray_expand_button"/>
 
 </com.android.launcher3.widget.picker.WidgetsListHeader>