added missing code because of merg conflicts

src/controllers/invoice/invoice.controller.ts

@@ -374,7 +374,7 @@ export const updateInvoiceData = async (invoiceId: number, updatedInvoiceData: a
 export const updateInvoice = async (req: Request, res: Response): Promise<Response> => {
   const { id } = req.params;
   const { invoice, billSplit } = req.body;
-
+  const userId = 1; // TODO: eplace with logged in user 
   try {
     const existingInvoice = await Invoice.findByPk(id);