Feature Request: allow clicking and dragging on the vertical scroll bar

[ElectricRCAircraftGuy]

Description of the problem or steps to reproduce

I can add the vertical scrollbar with set scrollbar true, but I'd like to be able to click on it and drag too, like in GUIs.

Specifications

Commit hash: 225927b
OS: Linux Ubuntu 22.04
Terminal: terminator 2.1.1

[ElectricRCAircraftGuy]

If I am able to add this feature, would you accept a PR on it?