[FIX] hr_holidays: improve leave summary view

* order leave summary entries by date descending in order to ease HR
   leave officers and managers daily job;
 * reorder list view of summary entries and add the employee to have
   more relevant information displayed;

Linked to task ID 1853352, feedback from internal use.

addons/hr_holidays/report/hr_leave_report.py

@@ -8,6 +8,7 @@ class LeaveReport(models.Model):
     _name = "hr.leave.report"
     _description = 'Leave Summary / Report'
     _auto = False
+    _order = "date_from DESC, employee_id"
 
     employee_id = fields.Many2one('hr.employee', string="Employee", readonly=True)
     name = fields.Char('Description', readonly=True)

addons/hr_holidays/report/hr_leave_reports.xml

@@ -46,12 +46,13 @@
         <field name="model">hr.leave.report</field>
         <field name="arch" type="xml">
             <tree create="0" edit="0" delete="0">
-                <field name="type"/>
-                <field name="name"/>
+                <field name="employee_id"/>
                 <field name="number_of_days" string="Number of Days" sum="Remaining Days"/>
                 <field name="date_from"/>
                 <field name="date_to"/>
                 <field name="state"/>
+                <field name="type"/>
+                <field name="name"/>
             </tree>
         </field>
     </record>