[FIX] hr_holidays: take full day leaves on Day view

The default hours of a time off created from the Day view would be the
range of hours that was selected in the calendar view, thus resulting in
leaves of half an hour.

closes odoo/odoo#106567

X-original-commit: 5155f654420433176abde675bedc4afeeeb45a1c
Signed-off-by: Kevin Baptiste <kba@odoo.com>

addons/hr_holidays/static/src/dashboard/time_off_card.scss

@@ -50,6 +50,7 @@
 }
 
 .o_timeoff_popover {
+    background-color: $o-view-background-color;
     font-size: 12px;
 
     ul {

addons/hr_holidays/static/src/views/calendar/calendar_model.js

 /** @odoo-module */
 
 import { CalendarModel } from '@web/views/calendar/calendar_model';
-import { serializeDate } from "@web/core/l10n/dates";
+import { deserializeDateTime, serializeDate, serializeDateTime } from "@web/core/l10n/dates";
 
 export class TimeOffCalendarModel extends CalendarModel {
     setup(params, services) {
@@ -14,10 +14,20 @@ export class TimeOffCalendarModel extends CalendarModel {
     }
 
     makeContextDefaults(record) {
+        const { scale } = this.meta;
         const context = super.makeContextDefaults(record);
         if (this.employeeId) {
             context['default_employee_id'] = this.employeeId;
         }
+
+        if(['day', 'week'].includes(scale)) {
+            if ('default_date_from' in context) {
+                context['default_date_from'] = serializeDateTime(deserializeDateTime(context['default_date_from']).set({ hours: 7 }));
+            }
+            if ('default_date_to' in context) {
+                context['default_date_to'] = serializeDateTime(deserializeDateTime(context['default_date_from']).set({ hours: 19 }));
+            }
+        }
         return context;
     }