[FIX] survey: display clock icon properly in survey kanban view

Currently, clock icon to schedule activities is not showing properly in
kanban view of survey for medium to large screens. If the there is not
enough room for buttons to fit within a single row, the buttons overlap
the clock icon (which is placed in the absolutely positioned footer).

This commit fixes the issue by adding the bottom padding on the button
container for large screens and thus making sure that the buttons never
overlap the clock icon.

TaskID-2726272

closes odoo/odoo#83330

X-original-commit: e693b52497b971e3d46a8eb56a899dbff7cf350f
Signed-off-by: Thibault Delavallee (tde) <tde@openerp.com>

addons/survey/views/survey_survey_views.xml

@@ -268,7 +268,7 @@
                                     <span class="text-muted" t-else="">Certified</span>
                                 </a>
                             </div>
-                            <div class="col-lg-3 col-sm-12 py-0 my-2 ml-auto text-lg-right">
+                            <div class="col-lg-3 col-sm-12 py-0 my-2 pb-lg-3 ml-auto text-lg-right">
                                 <button name="action_send_survey"
                                         string="Share" type="object"
                                         class="btn btn-secondary border"