[IMP] hr_expense: reduce employee visibility on report creation

When creating or editing an expense report, we have to select the corresponding
expenses. Since it is constrained that these expenses belong to the same
employee as the one from the report, it is not practical to see other
expenses in the dialog when adding them.

This commit extend the domai of the field in the expense report form so
that it doesn't show expenses from other employees.

task #1999537

closes odoo/odoo#33932

Signed-off-by: Jérome Maes (jem) <jem@openerp.com>

addons/hr_expense/views/hr_expense_views.xml

@@ -506,7 +506,7 @@
                     </group>
                      <notebook>
                         <page name="expenses" string="Expense">
-                        <field name="expense_line_ids" nolabel="1" widget="many2many" domain="[('state', '=', 'draft')]" options="{'reload_on_button': True}" context="{'form_view_ref' : 'hr_expense.hr_expense_view_form_without_header', 'expense_adding_line': True}">
+                        <field name="expense_line_ids" nolabel="1" widget="many2many" domain="[('state', '=', 'draft'), ('employee_id', '=', employee_id)]" options="{'reload_on_button': True}" context="{'form_view_ref' : 'hr_expense.hr_expense_view_form_without_header', 'expense_adding_line': True}">
                             <tree decoration-danger="is_refused">
                                 <field name="date"/>
                                 <field name="name"/>