fix search:

UI_V2/pages/categories/category.py

@@ -94,6 +94,8 @@ class Category:
         self.products_group.controls.clear()
         self.add_products(buffer)
         self.products_group.update()
+        self.searchbar.value = ''
+        self.searchbar.update()
 
     def on_profile_btn_click(self, e):
         self.page.go('/profil')