feat: Guest Display Settings

- Re-arranged Settings checkboxes
- Deleted `show_availability_status` from E Commerce Settings
- Added `Hide Price for Guest` functionality
- Added Custom Redirection for Guest Actions in  E Commerce Settings
- Minor cleanups

erpnext/e_commerce/api.py

@@ -46,4 +46,8 @@ def get_product_filter_data():
 		"settings": engine.settings,
 		"sub_categories": sub_categories,
 		"items_count": result["items_count"]
-	}
+	}
+
+@frappe.whitelist(allow_guest=True)
+def get_guest_redirect_on_action():
+	return frappe.db.get_single_value("E Commerce Settings", "redirect_on_action")