[IMP] point_of_sale: display pricelist button only if enabled

If the option use_pricelist is disabled, no need to display the button

Closes #25540

addons/point_of_sale/static/src/js/screens.js

@@ -2232,7 +2232,7 @@ define_action_button({
     'name': 'set_pricelist',
     'widget': set_pricelist_button,
     'condition': function(){
-        return this.pos.pricelists.length > 1;
+        return this.pos.config.use_pricelist && this.pos.pricelists.length > 1;
     },
 });
 

addons/point_of_sale/tests/test_frontend.py

@@ -273,6 +273,7 @@ class TestUi(odoo.tests.HttpCase):
                                                        'type': 'cash',
                                                        'company_id': main_company.id,
                                                        'journal_user': True})],
+            'use_pricelist': True,
             'available_pricelist_ids': [(4, pricelist.id) for pricelist in all_pricelists],
         })