[FIX] website_event: submenu page not found

Before this commit:
When disabling the submenu for events, it would show a 404
Page Not Found error.

After this commit:
the current behavior is that when the
submenu is disabled, it redirects to the /register page of the event.

task-3658380

closes odoo/odoo#160544

X-original-commit: ea140d5cfea992caad7207ff6499a46a8f575729
Signed-off-by: Warnon Aurélien (awa) <awa@odoo.com>
Signed-off-by: Aashish Thakur (aath) <aath@odoo.com>

addons/website_event/static/src/snippets/options.js

@@ -17,9 +17,10 @@ options.registry.WebsiteEvent = options.Class.extend({
         this.eventId = this._getEventObjectId();
         // Only need for one RPC request as the option will be destroyed if a
         // change is made.
-        const rpcData = await this.orm.read("event.event", [this.eventId], ["website_menu"]);
+        const rpcData = await this.orm.read("event.event", [this.eventId], ["website_menu","website_url"]);
         this.data.reload = this.currentWebsiteUrl;
         this.websiteMenu = rpcData[0]['website_menu'];
+        this.data.reload = rpcData[0]['website_url'];
         return res;
     },