Feature: #87798 - Provide a way to sort form lists in ext:form

Description

Forms in ext:form were previously not sorted in any manner, but just outputted in the order they were read from the filesystem's directories.

Forms can now be sorted by multiple keys in either ascending or descending order. Two new settings were introduced: sortByKeys and sortAscending.

Here is an example configuration, that will sort forms by their name first and by their file uid second:

TYPO3:
     CMS:
       Form:
         persistenceManager:
           sortByKeys: ['name', 'fileUid']
           sortAscending: true

Valid keys, by which the forms can be sorted, are:

name

The forms name.

identifier

The filename.

fileUid

The files uid.

persistenceIdentifier

The files location.

Example: 1:/form_definitions/contact.form.yaml

readOnly

Is the form readonly?

removable

Is the form removable?

location

Either storage or extension

invalid

Does the form have an error?

Impact

Forms will now initially be sorted by their name first and their file uid second in an ascending order. This affects both the form list shown in the form module as well as the ordering of the available select options when creating a new form content element.

To change the sorting, you can override the configuration via YAML as described by the example above.