Create.vue needs migrating to KCheckbox #4492

Observed behavior

This is a follow up issue on #4472

contentcuration/contentcuration/frontend/accounts/pages/__tests__/create.spec.js fails to run during tests execution when migrated to KCheckbox. It's likely related to the rules and hide-details props that have been removed from the Checkbox.vue component and yet are used in the Create.vue component.

The work around was to use the VCheckbox instead of the Checkbox, since it has the props in question.

Expected behavior

• The Create component should be migrated to KCheckbox
• The failing tests should run and pass.

User-facing consequences

None

Errors and logs

FAIL contentcuration/contentcuration/frontend/accounts/pages/__tests__/create.spec.js
  ● Test suite failed to run

    Call retries were exceeded

      at ChildProcessWorker.initialize (node_modules/jest-worker/build/workers/ChildProcessWorker.js:193:21)

Additional information

We don't need to implement hide-details or rules necessarily. Since this page is the only place where we're using checkbox rules, we can just implement the validation directly in the component. Additionally, it needs to display the error message underneath the field, which hide-details=false allows space for.

Steps to reproduce the issue

• Change VCheckbox in Create.vue to Checkbox
• Run the test suites using the yarn run test