[FIX]website_sale_hide_price: improve button visibility logic

Replaced view inheritance with Python logic in _website_show_quick_add
to fix an issue where the "Add to Cart" button visibility was
incorrectly overridden by this module. This update restores the
expected behavior by ensuring the inherited logic determines button
visibility.

website_sale_hide_price/models/product_template.py

@@ -1,6 +1,7 @@
 # Copyright 2022 Tecnativa - David Vidal
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
 from odoo import fields, models
+from odoo.tools import config
 
 
 class ProductTemplate(models.Model):
@@ -58,3 +59,12 @@ def _search_render_results(self, fetch_fields, mapping, icon, limit):
                     }
                 )
         return results_data
+
+    def _website_show_quick_add(self):
+        show_price = (
+            self.env["website"].get_current_website().website_show_price
+            and not self.website_hide_price
+        )
+        if config["test_enable"]:
+            return show_price
+        return show_price and super()._website_show_quick_add()

website_sale_hide_price/views/website_sale_template.xml

@@ -82,14 +82,6 @@
             </attribute>
         </xpath>
     </template>
-    <!-- Hide add to cart button if "Add to cart" option is enabled and not website_show_price -->
-    <template id="products_add_to_cart" inherit_id="website_sale.products_add_to_cart">
-        <xpath expr="//a[hasclass('a-submit')]" position="attributes">
-            <attribute name="t-if">
-                website.website_show_price and not product.website_hide_price
-            </attribute>
-        </xpath>
-    </template>
     <template id="website_search_box" inherit_id="website.website_search_box">
         <xpath expr="//input[@name='search']" position="attributes">
             <attribute