[Panlingual][Settings] Add top intro on the top of app list.

- show a message for app selection of user to avoid any confusion of
   searching app.

Bug: b/230689178
Test: see b/230689178
Change-Id: I597e718b81bd7a5019c69dbdfc02f26d7f3af5fd

src/com/android/settings/applications/manageapplications/ApplicationViewHolder.java

@@ -85,6 +85,14 @@ public class ApplicationViewHolder extends RecyclerView.ViewHolder {
         return view;
     }
 
+    static View newHeader(ViewGroup parent, int resText) {
+        ViewGroup view = (ViewGroup) LayoutInflater.from(parent.getContext())
+                .inflate(R.layout.preference_app_header, parent, false);
+        TextView textView = view.findViewById(R.id.apps_top_intro_text);
+        textView.setText(resText);
+        return view;
+    }
+
     void setSummary(CharSequence summary) {
         mSummary.setText(summary);
     }