feat: add MXN support on test wallet (#1760)

Author: dragosp1011

packages/wallet/backend/src/gatehub/consts.ts

@@ -31,7 +31,8 @@ export const SANDBOX_VAULT_IDS: Record<string, string> = {
   USD: '450d2156-132a-4d3f-88c5-74822547658d',
   EUR: 'a09a0a2c-1a3a-44c5-a1b9-603a6eea9341',
   GBP: '992b932d-7e9e-44b0-90ea-b82a530b6784',
-  ZAR: 'f1c412ce-5e2b-4737-9121-b7c11d6c3f93'
+  ZAR: 'f1c412ce-5e2b-4737-9121-b7c11d6c3f93',
+  MXN: '426c2e30-111e-4273-92b3-508445a6bb58'
 }
 export const PRODUCTION_VAULT_IDS: Record<string, string> = {
   USD: '5e1ff913-96d4-45ab-b7a3-04197a59fe06',