[FIX] website_slides: fix the end course button

This commit fixes the "End Course" button displayed after successfully passing
a quizz. Before this commit, the button didn't do anything, now, it redirects
to the slides homepage.

ommit linked to task ID 1978530 (fixes linked to internal testing).

closes odoo/odoo#33133

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

addons/website_slides/static/src/xml/slide_quiz.xml

@@ -98,8 +98,7 @@
                                 <button type="button" class="btn btn-light border o_wslides_quiz_btn align-self-end">Next <i class="fa fa-chevron-right"/></button>
                             </t>
                             <t t-else="">
-                                <!-- TODO: end course if no slide left -->
-                                <a type="button" class="btn btn-light border align-self-end">End course</a>
+                                <a type="button" href="/slides" class="btn btn-light border align-self-end">End course</a>
                             </t>
                         </div>
                     </div>