Since v1.0.13, using `distance` from fastest-levenshtein imported as
`import levenshtein from "fastest-levenshtein"` seems to no longer work.

* implement and support test configurations
* use webpage factory to create new webpage objects
* always return template field info
* allow Domain object instatiation from url
* add fetchAndLoadConfigs method to Domain object
* allow translating multiple paths simultaneously
* include translation errors in target output

Simplified schema, made "required" field readOnly for mandatory fields, and made "required" field a drop-down

Making required field a drop-down instead of a checkbox due to this bug: https://github.com/json-editor/json-editor/issues/1166

e642dcde added a helper fixed selection for the item type field.

However, it was not working when the schema was fetched from a remote URL.

This was reported to json-editor: https://github.com/json-editor/json-editor/issues/1165

This commit is a workaround which does not use $ref, hence duplicating some code.

This reverts commit e642dcde.

* Ignored transformation steps for Date and Published in fields because they are probably not necessary
* Also removed default value for Citoid selection

This reverts commit 0fe76147.