some cleanup

files/opencs/resources.qrc

@@ -64,9 +64,11 @@
         <file>edit-preview.png</file>
         <file>edit-clone.png</file>
         <file>add.png</file>
-        <file alias="startup/create-addon">raster/startup/big/create-addon.png</file>
-        <file alias="startup/create-game">raster/startup/big/new-game.png</file>
-        <file alias="startup/edit-content">raster/startup/big/edit-content.png</file>
-        <file alias="startup/configure">raster/startup/small/configure.png</file>
+    </qresource>
+    <qresource prefix="/startup">
+        <file alias="create-addon">raster/startup/big/create-addon.png</file>
+        <file alias="create-game">raster/startup/big/new-game.png</file>
+        <file alias="edit-content">raster/startup/big/edit-content.png</file>
+        <file alias="configure">raster/startup/small/configure.png</file>
     </qresource>
 </RCC>