make the contactus component submit properly

src/app/app.module.ts

src/app/authorisation.service.ts

src/app/backend-selection.service.ts

src/app/computesite.ts

src/app/contactus/contactus.component.html

src/app/contactus/contactus.component.ts

src/app/keygen/keygen.component.ts

src/app/tes.service.ts

src/assets/config/computesites.json

src/environments/environment.prod.ts

src/environments/environment.ts