[Feature Request] Option to disable setting time interval

[andreas-1107]

Existing: Whenever starting a new task, user must set an expected time for the next activity (1 min to 24h).

Request: Implement an option where the user can choose to never set an expected time. Rather, the timer just starts when the user clicks the activity.

I do not use the app as a Pomodoro timer or to plan my day, I just use to to track how much time I spend doing different categories each day. So for me, setting the expected time is just cumbersome.

Thank you for a great app!