feat(profile): add structure owners screen

src/mailer/mail-templates/tempUserRegistration.ejs

src/structures/structures.controller.spec.ts

src/structures/structures.controller.ts

src/temp-user/temp-user.controller.spec.ts

src/temp-user/temp-user.controller.ts

src/temp-user/temp-user.service.ts

src/users/services/users.service.ts