Volume Slider for typing Sound

[poyribn]

Checklist

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

Feature description

Directly under the "Typing Sound" Setting, there should be a Volume Slider if "Typing Sound" is set to "Always on".

Why do you want this feature?

When the "Typing Sound" Setting is enabled, the typing Sound is too loud.

In this Comment, we could not find a Way to actually fix this Bug on my Phone,
so we aggreed i should suggest adding a Volume Slider instead:
#395 (comment)

Additional information

See the Bug that inspired this Feature Request:
#395