fix: Fix mock-api login functionality

Squashed commit of the following:

commit 9022427d59290dfd2b08c4a076d6b0690d44d926
Author: Daniel Appelgren <daniel.appelgren@arbetsformedlingen.se>
Date:   Mon Sep 13 13:25:05 2021 +0200

    Update mock-apis

mock-api/mina-sidor-fa/scripts/organizations.js

@@ -8,7 +8,7 @@ function generateOrganizations(amount = 4) {
   for (let i = 1; i <= amount; ++i) {
     organizations.push({
       name: faker.company.companyName(),
-      organizationNumber: faker.datatype.uuid(),
+      organizationnumber: faker.datatype.uuid(),
     });
   }