[FIX] point_of_sale: load product requests

When the pos was loading only a part of the products, the request should follow those rules order:
- product is a favorite
- product is a service
- product had stock moves soon
- product update

But this request didn't take into account consumables products and if there was no stock move,
the value was null and postgres consider null values first when ordering desc.
Now with that changes, the order is correctly set based on the rules above.

closes odoo#124223

Signed-off-by: Monnom David (moda) <moda@odoo.com>

addons/point_of_sale/models/pos_config.py

@@ -613,8 +613,9 @@ def get_limited_products_loading(self, fields):
             WITH pm AS (
                   SELECT product_id,
                          Max(write_date) date
-                    FROM stock_quant
+                    FROM stock_move_line
                 GROUP BY product_id
+                ORDER BY date DESC
             )
                SELECT p.id
                  FROM product_product p
@@ -626,10 +627,11 @@ def get_limited_products_loading(self, fields):
                     AND (t.company_id=%(company_id)s OR t.company_id IS NULL)
                     AND %(available_categ_ids)s IS NULL OR t.pos_categ_id=ANY(%(available_categ_ids)s)
                 )    OR p.id=%(tip_product_id)s
-             ORDER BY t.priority DESC,
-                      t.detailed_type DESC,
-                      COALESCE(pm.date,p.write_date) DESC 
-                LIMIT %(limit)s
+            ORDER BY t.priority DESC,
+                    case when t.detailed_type = 'service' then 1 else 0 end DESC,
+                    pm.date DESC NULLS LAST,
+                    p.write_date
+            LIMIT %(limit)s
         """
         params = {
             'company_id': self.company_id.id,