give user css highest priority

package.json

@@ -83,7 +83,7 @@
         "c9.ide.ace.stripws": "#cf0f42ac59",
         "c9.ide.behaviors": "#98461756d9",
         "c9.ide.closeconfirmation": "#a28bfd8272",
-        "c9.ide.configuration": "#adf50fdaa2",
+        "c9.ide.configuration": "#a17478a2e5",
         "c9.ide.dialog.wizard": "#7667ec79a8",
         "c9.ide.fontawesome": "#781602c5d8",
         "c9.ide.format": "#b0bb91a623",