register changes

src/store/saga/registerSaga.js

     const requestData = {
       email: payload.values.mail.toString(),
       password: payload.values.password.toString(),
-      roles: ["User"],
+      roles: [
+        {
+          role: "User",
+        },
+      ],
       company: {
         name: payload.values.nameOfFirm.toString(),
         PIB: payload.values.PIB.toString(),