Add Volume Key Scrolling for feed view and article view

[sgreenuk]

Checklist

• I have used the search function for OPEN issues to see if someone else has already submitted the same feature request.
• I have also used the search function for CLOSED issues to see if the feature was already implemented and is just waiting to be released, or if the feature was rejected.
• I will describe the problem with as much detail as possible.
• This request contains only one single feature, not a list of multiple (related) features.

App version

2.7.0

Where did you get the app from

Google Play

Feature or improvement you want

Settings option to enable scrolling in app using volume keys.

Why should this be added?

This is a very useful feature for people using the app on increasingly popular Android e-ink devices.

Screenshots / Drawings / Technical details

No response