admin users dashboard fully functional

API/db/app.db

API/src/database/Database.ts

frontend/src/app/admin/admin.component.html

frontend/src/app/admin/admin.component.ts

frontend/src/app/app.module.ts

frontend/src/app/create-user/create-user.component.css

frontend/src/app/create-user/create-user.component.html

frontend/src/app/create-user/create-user.component.spec.ts

frontend/src/app/create-user/create-user.component.ts

frontend/src/app/services/users.service.ts

frontend/src/app/update-user/update-user.component.css

frontend/src/app/update-user/update-user.component.html

frontend/src/app/update-user/update-user.component.spec.ts

frontend/src/app/update-user/update-user.component.ts