UI tweak - Schedulers On after edit

[zecamigo]

Hi!

Thanks for developing this app, it has been very very useful!

There is a small suggestion I'd like to make.

Schedulers are disabled after each edit, which is very counterintuitive and have led me to accidentally not setting the timer.

So my suggestion is to not disable the scheduler if they are edited.

Also maybe consider setting them on by default once created.

This is the default behavior of every timer and alarm app I've used, so muscle memory is to skip toggling on.

Hope you consider this.

Thanks!