Let user change low battery notification %

[vardecab]

Looks like a great app! Thanks for building and releasing it.

Would it be possible to change the notification from 20% to user selected %?

Use case: user wants to keep battery between 30-70% so sets up charging limit to 70% but notification is currently fixed at "low battery 20%" so user needs to check manually if the battery is at 30% or not.

Ideally user can set charging limit % AND low battery % like in Battery Monitor:

[rurza]

Hey!
Good idea :) Consider it done