Improve titles

- makes titles consistent with what is shown into the Drawer and
defined into the PreferenceScreen files

Change-Id: I6077d947b3afcc63bfbe9c78b973709778064f9b

res/xml/accessibility_settings.xml

@@ -16,7 +16,7 @@
 
 <PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"
         xmlns:settings="http://schemas.android.com/apk/res/com.android.settings"
-        android:title="@string/accessibility_settings_title">
+        android:title="@string/accessibility_settings">
 
     <PreferenceCategory
             android:key="services_category"

res/xml/application_settings.xml

@@ -22,7 +22,7 @@
 -->
 
 <PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"
-        android:title="@string/applications_settings_header"
+        android:title="@string/applications_settings"
         android:summary="@string/applications_settings_summary"
         android:key="applications_settings">
 

res/xml/device_info_memory.xml

@@ -15,7 +15,7 @@
 -->
 
 <PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"
-        android:title="@string/storage_settings_title">
+        android:title="@string/storage_settings">
 
 <!-- Preference categories are dynamically created based on the list of available storage volumes -->
 

res/xml/power_usage_summary.xml

@@ -15,7 +15,7 @@
 -->
 
 <PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"
-        android:title="@string/battery_since_unplugged"
+        android:title="@string/power_usage_summary_title"
         android:key="app_list">
     <Preference
         style="?android:attr/preferenceInformationStyle"

res/xml/wifi_settings.xml

@@ -15,6 +15,6 @@
 -->
 
 <PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"
-        android:title="@string/wifi_settings_category">
+        android:title="@string/wifi_settings">
 
 </PreferenceScreen>

res/xml/wireless_settings.xml

@@ -15,7 +15,7 @@
 -->
 
 <PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"
-        android:title="@string/wireless_networks_settings_title">
+        android:title="@string/radio_controls_title">
 
     <CheckBoxPreference
         android:key="toggle_airplane"