restore maxHeight toggler for accordions panels so that FAQ of reception module work fine

outils/static/js/all_common.js

@@ -543,6 +543,12 @@ $(document).on('click', '.accordion', function(){
     } else {
       panel.style.display = "block";
     }
+
+    if (panel.style.maxHeight) {
+        panel.style.maxHeight = null;
+    } else {
+        panel.style.maxHeight = panel.scrollHeight + "px";
+    }
 });
 
 function report_JS_error(e, m) {