[IMP] pos_self_order, point_of_sale: rename tracking_number

"Tacking number" has been renamed everywhere "short order number" in
point of sale and self order.

Part-of: odoo/odoo#138897

addons/point_of_sale/models/pos_order.py

@@ -328,7 +328,7 @@ class PosOrder(models.Model):
     has_refundable_lines = fields.Boolean('Has Refundable Lines', compute='_compute_has_refundable_lines')
     refunded_orders_count = fields.Integer(compute='_compute_refund_related_fields')
     ticket_code = fields.Char(help='5 digits alphanumeric code to be used by portal user to request an invoice')
-    tracking_number = fields.Char(string="Tracking Number", compute='_compute_tracking_number')
+    tracking_number = fields.Char(string="Short order number", compute='_compute_tracking_number')
 
     @api.depends('lines.refund_orderline_ids', 'lines.refunded_orderline_id')
     def _compute_refund_related_fields(self):

addons/pos_self_order/static/src/app/pages/confirmation_page/confirmation_page.xml

@@ -13,7 +13,7 @@
             <h1 t-else="" class="mb-4">We're preparing your order!</h1>
             <h3 t-if="state.payment" class="mt-3 text-muted">Pay at the cashier <t t-esc="selfOrder.formatMonetary(confirmedOrder.amount_total)" /></h3>
             <div class="d-inline-flex flex-column border rounded py-4 px-5 bg-view mb-3">
-                <span class="fs-2 text-muted">Your tracking number</span>
+                <span class="fs-2 text-muted">Your short order number</span>
                 <span class="number lh-1" t-esc="confirmedOrder.trackingNumber" />
             </div>
             <h3 t-if="selfOrder.table.name || confirmedOrder.table_stand_number" class="text-muted mb-3">

addons/pos_self_order/static/src/app/pages/order_history_page/order_history_page.xml

@@ -17,7 +17,7 @@
                                 <div class="d-flex align-items-center justify-content-between">
                                     <div class="d-flex flex-column">
                                         <h6 class="m-0" t-esc="order.pos_reference"/>
-                                        <span class="text-muted">Tracking number: <t t-esc="order.trackingNumber" /></span>
+                                        <span class="text-muted">Short order number: <t t-esc="order.trackingNumber" /></span>
                                     </div>
                                     <span
                                         class="badge py-2 rounded-pill text-capitalize"