Consider enabling terminal sticky scroll by default in stable

[Tyriar]

It's been on by default in Insiders for a few months now and there haven't been many complaints

fyi @meganrogge

[Tyriar]

Ideally we'd get #209136 in before we enable, that PR was reverted due to breaking macOS SI tests.

[Tyriar]

Getting pretty close to it being much more reliable on Windows. It's been enabled by default in Insiders for a while now and I haven't heard any complaints.

[starball5]

Is this issue ticket referring to sticky scroll in general? (Ex. in tree views, terminal, etc.) I thought editor sticky scroll was already enabled by default now?

[Tyriar]

@starball5 just for the terminal

[Tyriar]

Current status is I don't really want to enable by default for stable until:

• We ship conpty v2 by default Ship newer version of conpty #224488
• Command state is properly cleared after the terminal content is cleared Terminal decorations left behind after watch program (eg. tsc), cls, clear, etc. clears the terminal #166864 (which may be fixed by conpty v2)
• Solve flicker problem in pagers Terminal sticky scroll can show up for 1 frame when using page down in a pager #222075 (also could be fixed by conpty v2)