fix: force freeWorkshop value because it's now optional

src/app/form/form-view/form-view.component.ts

@@ -337,6 +337,9 @@ export class FormViewComponent implements OnInit {
     const user = await this.profileService.getProfile();
     const newStructure = new Structure(this.structureForm.value);
     newStructure.hours = this.hoursForm.value;
+    if (!this.structureForm.value.freeWorkShop) {
+      newStructure.freeWorkShop = true;
+    }
     this.structureService.createStructure(newStructure, this.profile).subscribe((struct) => {
       if (user.job.hasPersonalOffer) {
         this.structure = struct;