[SCM] Scroll is interrupted by the "Message" text boxes, which results in poor scroll UX

[stagefright5]

Description
When scrolling in SCM view, as soon as the cursor comes in contact eith the "Message" box, the scrolling stops.

• VSCode Version: 1.47.0
• OS Version: Windows 10

Steps to Reproduce:

1. Open a workspace that has git repos and so many changes that it introduces scroll in the SCM view
2. Open SCM view
3. Try scrolling using mouse wheel or touchpad gesture

Does this issue occur when all extensions are disabled?: Yes

[ryenus]

I have a folder containing dozens of repositories and I also experienced this.
A workaround is to place the mouse cursor over the scroll bar,
or similarly on the left side where it won't hover the message input boxes.

Meanwhile it's actually useful to be able to easily stop by next changed repository and work there.
Maybe there could be a way to navigate across the repositories with changes,
similar to the next/previous change buttons in a diff view?

[joaomoreno]

#102144