simple nav button list with red dot

src/app/maindata.service.ts

src/app/test-controller/test-controller.component.css

src/app/test-controller/test-controller.component.html

src/app/test-controller/test-controller.component.ts

src/app/test-controller/test-controller.interfaces.ts

src/app/test-controller/test-controller.service.ts

src/environments/environment.ts