Bug/57401 sorting by link custom field causes exception

[toy]

Ticket

OP#57401

What are you trying to accomplish?

Allow ordering by custom field of link format

What approach did you choose and why?

Adding sorting as for string format + add tests for ordering by custom fields of all formats

Merge checklist

• [ ] Added/updated tests
• [ ] Added/updated documentation in Lookbook (patterns, previews, etc)
• [ ] Tested major browsers (Chrome, Firefox, Edge, ...)