Fix toolbar load when GET params are present in "_wdt" route

When using a custom router that inject GET parameters, eg:

```
# services.yaml
parameters:
    # Replace default url generator service
    router.options.generator_base_class: Combodo\iTop\Portal\Routing\UrlGenerator
```

The path generated by the toolbar JS is HTML entity encoded which breaks the JS call (`&` becomes `&`).

src/Symfony/Bundle/WebProfilerBundle/Resources/views/Profiler/toolbar_js.html.twig

@@ -15,7 +15,7 @@
 
         Sfjs.load(
             'sfwdt{{ token }}',
-            '{{ path("_wdt", { "token": token }) }}',
+            '{{ path("_wdt", { "token": token })|escape('js') }}',
             function(xhr, el) {
 
                 /* Evaluate embedded scripts inside the toolbar */