fix: added billing.py to handle csrf token issue

frappe/www/billing.py

@@ -0,0 +1,22 @@
+import frappe
+from frappe.utils import cint
+
+no_cache = 1
+
+
+def get_context(context):
+	frappe.db.commit()  # nosemgrep
+	context = frappe._dict()
+	context.boot = get_boot()
+	return context
+
+
+def get_boot():
+	return frappe._dict(
+		{
+			"site_name": frappe.local.site,
+			"read_only_mode": frappe.flags.read_only,
+			"csrf_token": frappe.sessions.get_csrf_token(),
+			"setup_complete": cint(frappe.get_system_settings("setup_complete")),
+		}
+	)