change(structures): conseillerNum should be disabled

...form/form-view/structure-form/structure-form.component.ts

...ure-form/structure-labels/structure-labels.component.html

...ure-form/structure-labels/structure-labels.component.scss

...cture-form/structure-labels/structure-labels.component.ts

...red/components/checkbox-form/checkbox-form.component.html

...red/components/checkbox-form/checkbox-form.component.scss

...hared/components/checkbox-form/checkbox-form.component.ts

.../shared/components/checkbox-form/checkbox-form.stories.ts

src/app/shared/components/checkbox/checkbox.component.scss

src/assets/form/sprite.svg