Revert "Remove jquery-form (#8232)"

[dmaicher]

This reverts commit ccd3492.

See #8232 (comment)

Subject

Changelog

### Added
- Add back previously removed jquery-form plugin

[dmaicher]

npx encore production does not produce any diff for app.js. So reverting the commit should be fine?

there is a CI check for it anyway I saw

[dmaicher]

Checking the build fail 😕

Seems Symfony is not fully compatible with doctrine/persistence 4 yet

.........PHP Fatal error:  Declaration of Symfony\Component\Security\Acl\Domain\Acl::addPropertyChangedListener(Doctrine\Persistence\PropertyChangedListener $listener) must be compatible with Doctrine\Persistence\NotifyPropertyChanged::addPropertyChangedListener(Doctrine\Persistence\PropertyChangedListener $listener): void in /var/www/SonataAdminBundle/vendor/symfony/security-acl/Domain/Acl.php on line 70

[dmaicher]

until /~https://github.com/symfony/security-acl is compatible. Will look into it

[dmaicher]

See symfony/security-acl#123

[VincentLanglet]

Thanks !