[FIX] web: destroy modal on cross click or escape

Instead of just hidding it
Otherwise, when opening a new dialog, it is considered that there is a previous opened dialog, and this can lead to refresh the record which opened the hidden/previous dialog

This is related to rev. 57b48602fb

addons/web/static/src/js/chrome.js

@@ -172,7 +172,7 @@ instance.web.Dialog = instance.web.Widget.extend({
         $dialog_content.openerpClass();
 
         this.$dialog_box.on('hidden.bs.modal', this, function() {
-            self.close();
+            self.destroy();
         });
         this.$dialog_box.modal('show');