refactor: move empty fields management to jalhyd

jalhyd_branch

...components/base-param-input/base-param-input.component.ts

...p/components/calculator-list/calculator-list.component.ts

src/app/components/pb-schema/pb-schema.component.ts

src/app/formulaire/definition/form-prebarrage.ts

src/app/formulaire/definition/form-section.ts

src/app/formulaire/elements/fieldset.ts

src/app/formulaire/elements/formulaire-node.ts

src/app/services/app-setup.service.ts