[IMP] stock: priority widget

Use the priority widget (the yellow stars) to represent the priority field on stock.picking

Task: 1942231
Co-Authored-By: Hetal Dhanak <hdh-odoo@users.noreply.github.com>

addons/stock/models/stock_picking.py

@@ -218,7 +218,7 @@ class Picking(models.Model):
         # default='1', required=True,  # TDE: required, depending on moves ? strange
         index=True, tracking=True,
         states={'done': [('readonly', True)], 'cancel': [('readonly', True)]},
-        help="Priority for this picking. Setting manually a value here would set it as priority for all the moves")
+        help="Products will be reserved first for the transfers with the highest priorities.")
     scheduled_date = fields.Datetime(
         'Scheduled Date', compute='_compute_scheduled_date', inverse='_set_scheduled_date', store=True,
         index=True, tracking=True,

addons/stock/views/stock_picking_views.xml

@@ -329,7 +329,7 @@
                                 <group string="Other Information" name="other_infos">
                                     <field name="picking_type_code" invisible="1"/>
                                     <field name="move_type" attrs="{'invisible': [('picking_type_code', '=', 'incoming')]}"/>
-                                    <field name="priority"/>
+                                    <field name="priority" widget="priority"/>
                                     <field name="group_id" groups="base.group_no_one"/>
                                     <field name="company_id" groups="base.group_multi_company" options="{'no_create': True}"/>
                                 </group>