task1 - apps/app/src/app/serivces/polling.service.ts
task2 - apps/app/src/app/app.component.ts:82
task3 - apps/app/src/app/serivces/numbers.service.ts
task4 - apps/app/src/app/app.component.ts:46
task5 - apps/app/src/styles.scss
task6 - apps/app/src/app/+state