Clean up and organize e2e tests: folder /service-worker, /sms, /targets, tasks

[tatilepizs]

Describe the issue We need to clean up and organize the e2e test, this ticket is to do it for folders /service-worker, /sms, /targets, /tasks

Describe the improvement you'd like The plan for this first phase is just to clean up and organize the e2e test that we already have, we don't plan to remove or implement any new scenarios, we just want to try to reduce the flakiness of the tests that we have.

Describe alternatives you've considered N/A