[IMP] website_slides: change confirmation messages for email

Purpose
=======
Clean up messages related to email verification.

Specification
=============
Rephrase messages, add confirmation of email sent and let user change
email.
Do not show "Validation Email sent" if the current user changed their
email address.

PR: https://github.com/odoo/odoo/pull/77617
Task-2647065

closes odoo/odoo#77617

Signed-off-by: Thibault Delavallee (tde) <tde@openerp.com>

addons/website_profile/static/src/js/website_profile.js

@@ -27,7 +27,7 @@ publicWidget.registry.websiteProfile = publicWidget.Widget.extend({
             params: {'redirect_url': $element.data('redirect_url')},
         }).then(function (data) {
             if (data) {
-                self.$('button.validation_email_close').click();
+                window.location = $element.data('redirect_url');
             }
         });
     },