[UX Improvement] Rename "Disable mark read through scrolling" settings option

[jgottfried]

I think that the settings option to "disable mark read through scrolling" is confusingly named.

I have to enable a toggle to disable a feature?

This would be much more intuitive if the setting would just be called: "Enable mark as read through scrolling" – or even just "Mark as Read by Scrolling"

That way the checkbox would clearly communicate what will happen and it's not a "double negative" situation.