[FIX] website_slides: prevent content title overflow

This commit fixes the overflow of content title on without fullscreen view(Exit-
Fullscreen) of content page by cropping the title and adding  '...' at end.

Task-3384661

closes odoo/odoo#128727

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

addons/website_slides/views/website_slides_templates_lesson.xml

@@ -151,7 +151,7 @@
                                 t-att-class="'mr-1 fa fa-fw %s' % ('text-success fa-check-circle' if channel_progress[aside_slide.id].get('completed') else 'text-600 fa-circle')">
                             </i>
                         </div>
-                        <div class="o_wslides_lesson_link_name">
+                        <div class="o_wslides_lesson_link_name text-truncate">
                             <t t-call="website_slides.slide_icon">
                                 <t t-set="slide" t-value="aside_slide"/>
                             </t>