OZG-7501 rename; refactor repository

...s/forwarding-shared/src/lib/forwarding.repository.spec.ts

...t/libs/forwarding-shared/src/lib/forwarding.repository.ts

...libs/forwarding-shared/src/lib/forwarding.service.spec.ts

...ient/libs/forwarding-shared/src/lib/forwarding.service.ts

...container/forwarding-by-email-container.component.spec.ts

...mail-container/forwarding-by-email-container.component.ts

...warding-by-email-form/forwarding-by-email-form.service.ts

...ing-by-email-form/forwarding-by-email.formservice.spec.ts