Pull the "next word prediction" option up a level.

Bug: 6694141
Change-Id: Ib01575b0994e69ef232a234c575242ec49ed0679
diff --git a/java/res/xml/prefs.xml b/java/res/xml/prefs.xml
index d8bf784..bf88058 100644
--- a/java/res/xml/prefs.xml
+++ b/java/res/xml/prefs.xml
@@ -81,6 +81,12 @@
         android:title="@string/misc_category"
         android:key="misc_settings">
         <CheckBoxPreference
+            android:key="next_word_prediction"
+            android:title="@string/bigram_prediction"
+            android:summary="@string/bigram_prediction_summary"
+            android:persistent="true"
+            android:defaultValue="true" />
+        <CheckBoxPreference
             android:key="usability_study_mode"
             android:title="@string/prefs_usability_study_mode"
             android:persistent="true"
@@ -114,12 +120,6 @@
                 android:summary="@string/use_contacts_dict_summary"
                 android:persistent="true"
                 android:defaultValue="true" />
-            <CheckBoxPreference
-                android:key="next_word_prediction"
-                android:title="@string/bigram_prediction"
-                android:summary="@string/bigram_prediction_summary"
-                android:persistent="true"
-                android:defaultValue="true" />
             <PreferenceScreen
                 android:key="pref_vibration_duration_settings"
                 android:title="@string/prefs_keypress_vibration_duration_settings"/>