[FIX] web: fix calendar buttons spacing

=== ISSUE ===

If you open the calendar module with an event with attendees, the status
button showing if the user accepted the invitation or not is missing a
left margin.

=== AFTER ===

We add a `ms-1` class to the buttons to space them correctly.

task-3389679
part of task-3326263

closes odoo/odoo#127976

X-original-commit: 86595f718ec5824d53f49ae7495677dd31551d57
Signed-off-by: Pierre Paridans (app) <app@odoo.com>

addons/calendar/static/src/views/attendee_calendar/common/attendee_calendar_common_popover.xml

@@ -15,7 +15,7 @@
         <xpath expr="//t[@t-if='isEventDeletable']" position="after">
             <a t-if="isEventArchivable and isEventDetailsVisible" href="#" class="btn btn-secondary o_cw_popover_archive_g" t-on-click="onClickArchive">Delete</a>
             <div t-if="displayAttendeeAnswerChoice" class="d-inline-block">
-                <Dropdown togglerClass="'btn btn-secondary'">
+                <Dropdown togglerClass="'btn btn-secondary ms-1'">
                     <t t-set-slot="toggler">
                         <i t-attf-class="fa fa-circle o-calendar-attendee-status-icon #{selectedStatusInfo.color}"/> <span class="o-calendar-attendee-status-text" t-esc="selectedStatusInfo.text"></span>
                     </t>

addons/web/static/src/views/calendar/calendar_common/calendar_common_popover.xml

@@ -74,7 +74,7 @@
             <a href="#" class="btn btn-primary o_cw_popover_edit" t-on-click="onEditEvent">Edit</a>
         </t>
         <t t-if="isEventDeletable">
-            <a href="#" class="btn btn-secondary o_cw_popover_delete ms-2" t-on-click="onDeleteEvent">Delete</a>
+            <a href="#" class="btn btn-secondary o_cw_popover_delete ms-1" t-on-click="onDeleteEvent">Delete</a>
         </t>
     </t>