Add CreateAddressBookItemDto schema tests

[hectorgomezv]

Changes

• Adds missing schema tests for CreateAddressBookItemDto.

[iamacook]

The address tests look good, but I think we should move most of the name tests to a separate spec that only tests AddressBookItemNameSchema. What do you think?

I suggest we adjust the error messages of it as well:

• "Address Books items..." -> "Address book entry names...".
• "...and can contain..." -> "...and can only contain...".

[jmealy]

The address tests look good, but I think we should move most of the name tests to a separate spec that only tests AddressBookItemNameSchema. What do you think?

I suggest we adjust the error messages of it as well:

• "Address Books items..." -> "Address book entry names...".
• "...and can contain..." -> "...and can only contain...".

Looks like tests for the name schema already exist in address-book-item-name.schema.spec.ts. They cover the same cases as the name tests here.

Changed the error message as suggested and fixed a typo: 9797af0