[Android] Fix the super-mature string that was a placeholder for the title for the overlay configuration setting.

Also fix a NullPointerException possibility. Fixed it by giving the PreferenceScreen a title.

Source/Android/res/values-ja/strings.xml

@@ -43,6 +43,8 @@
 
     <!-- Input Config Fragment -->
     <string name="input_settings">入力</string>
+    <string name="input_overlay_layout">入力オーバーレイレイアウト</string>
+    <string name="input_overlay_layout_desc">入力オーバーレイのためのボタンのレイアウト。</string>
     <string name="gamecube_bindings">ゲームキューブの入力バインディング</string>
     <string name="input_binding">入力バインディング</string>
     <string name="input_binding_descrip">%1$sにバインドするための入力を移動または押してください。</string>

Source/Android/res/values/strings.xml

@@ -43,6 +43,8 @@
 
     <!-- Input Config Fragment -->
     <string name="input_settings">Input</string>
+    <string name="input_overlay_layout">Input Overlay Layout</string>
+    <string name="input_overlay_layout_desc">Button layout for the input overlay.</string>
     <string name="gamecube_bindings">Gamecube Input Bindings</string>
     <string name="input_binding">Input Binding</string>
     <string name="input_binding_descrip">Press or move an input to bind it to %1$s.</string>

Source/Android/res/xml/input_prefs.xml

@@ -5,9 +5,12 @@
                   
     <Preference
         android:key="inputOverlayConfigPref"
-        android:title="Butts"/>
+        android:summary="@string/input_overlay_layout_desc"
+        android:title="@string/input_overlay_layout"/>
 
-    <PreferenceScreen android:title="@string/gamecube_bindings">
+    <PreferenceScreen
+        android:key="gamecube_bindings"
+        android:title="@string/gamecube_bindings">
         <Preference
             android:key="InputA"
             android:title="@string/button_a" />