Reorganize settings in Google Keyboard

Changes :
Input languages ->  Languages
Input preferences -> Preferences
Multi lingual Options -> Multilingual Options
Keyboard Theme -> Theme
Gesture typing preferences -> Gesture typing

**New
 Appearance
        -> Theme
        -> Custom input style

**Removed
 Multilingual options from L dynamically

Bug: 11866784
Change-Id: I07404c27868e1b087b0cafb63d2031a5b493a885
diff --git a/java/res/values/strings.xml b/java/res/values/strings.xml
index bccab93..a809d83 100644
--- a/java/res/values/strings.xml
+++ b/java/res/values/strings.xml
@@ -36,18 +36,20 @@
     <!-- Option to control whether or not to show a popup with a larger font on each key press. -->
     <string name="popup_on_keypress">Popup on keypress</string>
 
-    <!-- Settings screen title for input preferences [CHAR LIMIT=33]-->
-    <string name="settings_screen_input">Input preferences</string>
+    <!-- Settings screen title for preferences [CHAR LIMIT=33]-->
+    <string name="settings_screen_preferences">Preferences</string>
     <!-- Settings screen title for appearance preferences [CHAR LIMIT=33] -->
-    <string name="settings_screen_appearances">Appearance</string>
-    <!-- Settings screen title for multi lingual options [CHAR_LIMIT=33] -->
-    <string name="settings_screen_multi_lingual">Multi lingual options</string>
+    <string name="settings_screen_appearance">Appearance</string>
+    <!-- Settings screen title for multilingual options [CHAR_LIMIT=33] -->
+    <string name="settings_screen_multilingual">Multilingual options</string>
     <!-- Settings screen title for gesture typing preferences [CHAR_LIMIT=33] -->
-    <string name="settings_screen_gesture">Gesture typing preferences</string>
+    <string name="settings_screen_gesture">Gesture Typing</string>
     <!-- Settings screen title for text correction options [CHAR_LIMIT=33] -->
     <string name="settings_screen_correction">Text correction</string>
     <!-- Settings screen title for advanced settings [CHAR LIMIT=33] -->
     <string name="settings_screen_advanced">Advanced</string>
+    <!-- Settings screen title for keyboard theme settings [CHAR LIMIT=33] -->
+    <string name="settings_screen_theme">Theme</string>
 
     <!-- Option name for including other IMEs in the language switch list [CHAR LIMIT=30] -->
     <string name="include_other_imes_in_language_switch_list">Switch to other input methods</string>
@@ -152,14 +154,14 @@
     <string name="configure_input_method">Configure input methods</string>
 
     <!-- Title for input language selection screen -->
-    <string name="language_selection_title">Input languages</string>
+    <string name="language_selection_title">Languages</string>
 
     <!-- Title for the 'Help & feedback' settings fragment which shows a help page and has a button
          for submitting feedback. [CHAR LIMIT=35] -->
     <string name="help_and_feedback">Help &amp; feedback</string>
 
     <!-- Preference for input language selection -->
-    <string name="select_language">Input languages</string>
+    <string name="select_language">Languages</string>
 
     <!-- Add to dictionary hint -->
     <string name="hint_add_to_dictionary">Touch again to save</string>