[FIX] website_slide: wait for the url to be checked before clicking

In the tour course_publisher_standard and course_publisher, the triggers
were not making sure that the url was validated before clicking on the
button, therefore clicking on a disabled button. This resulted in tests
randomly failing on runbot.

This commit adds an extra trigger to make sure the URL has been
validated.

runbot-4060

closes odoo/odoo#100369

X-original-commit: 2795d33d756e3101537c8ed0a017e6cc22afb1db
Signed-off-by: Romain Derie (rde) <rde@odoo.com>

addons/website_slides/static/tests/tours/slide_course_publisher_standard.js

@@ -59,6 +59,7 @@ wTourUtils.registerWebsitePreviewTour('course_publisher_standard', {
 }, {
     content: 'eLearning: click "Add URL" really adding image',
     trigger: '.o_upload_media_url_button',
+    extra_trigger: '.o_we_url_success',
 }, {
     content: 'eLearning: is the Corgi set ?',
     trigger: 'iframe img.o_wslides_course_pict',

addons/website_slides/static/tests/tours/slides_course_publisher.js

@@ -60,6 +60,7 @@ wTourUtils.registerWebsitePreviewTour('course_publisher', {
 }, {
     content: 'eLearning: click "Add URL" really adding image',
     trigger: '.o_upload_media_url_button',
+    extra_trigger: '.o_we_url_success',
 }, {
     content: 'eLearning: is the Corgi set ?',
     trigger: 'iframe img.o_wslides_course_pict',