Update header test to 'Work profile input & assistance'

Per suggestion from UX, this CL updates the category header of
work-profile specific enties in Languages & input from
  Work profile
to
  Work profile input & assistance.

Other than that, there is no user-visible behavior change.

Bug: 123314089
Test: Manually verified as follows.
  1. Build and flash an AOSP build
  2. Install Test DPC
  3. Open Settings -> System -> Languages & input
  4. Make sure that the new category header for work-profile specific
     entries is now shown as "Work profile input & assistance"
Change-Id: I4a4fb7c8a31d8d849780e71796b92ec0a2f026e3
diff --git a/res/values/strings.xml b/res/values/strings.xml
index 59374cf..4dab0b8 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -4487,8 +4487,8 @@
     <string name="keyboard_shortcuts_helper">Keyboard shortcuts helper</string>
     <!-- Summary text for the 'keyboard shortcuts helper' dialog. [CHAR LIMIT=100] -->
     <string name="keyboard_shortcuts_helper_summary">Display available shortcuts</string>
-    <!-- Title for the 'Work profile' preference category inside Languages and inputs'. [CHAR LIMIT=45] -->
-    <string name="language_and_input_for_work_category_title">Work profile</string>
+    <!-- Title for the 'Work profile input & assistance' preference category inside Languages and inputs'. [CHAR LIMIT=50] -->
+    <string name="language_and_input_for_work_category_title">Work profile input &amp; assistance</string>
     <!-- Title for the 'Virtual keyboards for work' preference. [CHAR LIMIT=45] -->
     <string name="virtual_keyboards_for_work_title">Virtual keyboard for work</string>