[Public-form] - Updates plugin in order to be fully compatible with securimage library

[Public-form] - Updates plugin in order to be fully compatible with securimage library

Requires to remove two attributes within backend configuration. Requires to add a hard link to our library packaged.

changed milestone to %FusionDirectory 1.4

added plugin-public-forms label

assigned to @tdockx

created branch 6226-public-form-updates-plugin-in-order-to-be-fully-compatible-with-securimage-library to address this issue

mentioned in commit c67aec0f

added 3h of time spent

added Added label

added PJ1802-0188 label