feat: update order payment methods and refine profile edit functionality

- Replaced `Order.PaymentMethod` options with "cash" and "card" while adjusting related code and templates
- Set "cash" as the default payment method for orders and checkout forms
- Added profile editing functionality with `ProfileForm`, allowing users to update names
- Improved feedback messages across profile and order management templates
- Updated catalog to handle empty filter results with a "reset filters" option

templates/catalog/_fragments/item-list.html

@@ -1,5 +1,14 @@
 <main class="item-list">
-    {% include "_fragments/item-grid.html" with items=page_obj empty_message="В этой категории пока нет товаров." %}
+    {% if page_obj.object_list %}
+        {% include "_fragments/item-grid.html" with items=page_obj empty_message="В этой категории пока нет товаров." %}
+    {% elif filters_active %}
+        <div class="catalog-empty">
+            <p class="item-list-empty">По выбранным фильтрам ничего не найдено.</p>
+            <a class="catalog-empty__reset" href="{{ reset_filters_url }}">Сбросить фильтры</a>
+        </div>
+    {% else %}
+        {% include "_fragments/item-grid.html" with items=page_obj empty_message="В этой категории пока нет товаров." %}
+    {% endif %}
 
     {% if paginator.num_pages > 1 %}
     <nav class="catalog-pagination">