fix namespaces not updating when switching cluster (#102)

pkg/dashboard/static/scripts.js

@@ -13,7 +13,6 @@ $(function () {
         fillClusterList(data, context);
 
         initView(); // can only do it after loading cluster list
-    })
         
         $.getJSON("/api/kube/namespaces").fail(function (xhr) {
             reportError("Failed to get namespaces", xhr)
@@ -26,6 +25,8 @@ $(function () {
                 }))
             })
         })
+    })
+
 
     $.getJSON("/api/scanners").fail(function (xhr) {
         reportError("Failed to get list of scanners", xhr)