LatinIME: Default to Material You theme

Signed-off-by: Pranav Vashi <neobuddy89@gmail.com>

Author: neobuddy89

java/src/com/android/inputmethod/keyboard/KeyboardTheme.java

@@ -41,7 +41,7 @@ public final class KeyboardTheme implements Comparable<KeyboardTheme> {
     public static final int THEME_ID_LXX_DARK = 4;
     public static final int THEME_ID_AUTO_DARK = 5;
     public static final int THEME_ID_YOU = 6;
-    public static final int DEFAULT_THEME_ID = THEME_ID_AUTO_DARK;
+    public static final int DEFAULT_THEME_ID = THEME_ID_YOU;
 
     private static KeyboardTheme[] AVAILABLE_KEYBOARD_THEMES;