Allow customisation for vibration strength

[EricosEagle]

Checklist

• • I made sure that there are no existing issues - open or closed - to which I could contribute my information.
• • I have read the FAQ and my problem isn't listed.
• • I have taken the time to fill in all the required details. I understand that the feature request will be dismissed otherwise.
• • This issue contains only one feature request.
• • I have read and understood the contribution guidelines.

Is your feature request related to a problem? Please describe.
Currently the vibration strength is a bit too much for my liking, it would be nice to be able to customize it or set it to the system default.

Describe the solution you'd like
A slider in the app's settings page that allows me to control how much the phone vibrates when I press a key.
It would also be nice to have a slider for customizing the duration of the vibration.

Describe alternatives you've considered
Have multiple presets of vibration intensity + duration, or any other solution that allows these parameters to be controlled.,

Additional context
N/A

[ronniedroid]

I think the vibration is set to system default, as the keyboard is using the standarized provideHapticFeedback() function and not the vibrator class.

Currently: changing the system vibration strength also changes the Keyboards strength.

If we chabge to vibrator: we will be able to control the vibration more but at the cost of asking for a permission (which imo we don't really need)

We could try giving different keys different types of vibration though using the current method.