fix: improve terminal marker placements on windows

[cpendery]

This PR attempts to approve terminal marker placements on Windows in 2 ways.

1. If the Windows prompt adjustment fails, reattempt to identify the command start when a user provides input. This helps with multiline prompts like used in Git Bash
2. Adjust the prompt start and end markers for all Windows prompts, not just single line prompts
   note: while this will result in the starting line of a multiline prompt getting captured in the output, it improves the sticky scroll behavior significantly.

Sticky Scroll Pre Fix

stickyScrollBad.mp4

Sticky Scroll Post Fix

stickyScrollFix.mp4

Input Prompt Adjustment Example 1

markerInputCorrection2.mp4

Input Prompt Adjustment Example 2

markerInputCorrection.mp4

Related to #143769 & #209003

[cpendery]

I fixed the stray markers, avoid adjusting the prompt start if the text is wrapped, and 1-2 small issues I found testing. Here are some new demo videos

No Adjust When Wrapped

fixed_bashNoAdjustOnWrap.mp4

Multi-line Git Bash Adjust

fixed_bashInputAdjust.mp4

Multi-line Pwsh Adjust

fixed_pwshMutliInputAdjust.mp4

Single-line Pwsh Adjust

fixed_pwshInputAdjust.mp4

[Tyriar]

Just tried with Windows/pwsh 7/starship and the multi-line prompt is still not coming through in sticky scroll:

It's working for git bash though 🤔

[cpendery]

Just tried with Windows/pwsh 7/starship and the multi-line prompt is still not coming through in sticky scroll:

It's working for git bash though 🤔

I'll setup starship and see if I can replicate this.

[cpendery]

I think I fixed it, there were small bugs. It's working for git bash (starship, default multiline, singleline) & pwsh (starship, oh-my-posh [json theme], & default)

1. bash prompts were getting a height of 1 too small since it doesn't have trailing newlines like a powershell prompt
2. I used an offset of the prompt height, but it should be promptHeight -1 since the current line is part of the prompt
3. The bounds were wrong for cloning a marker below line 0 of the terminal, the offset should be - cursorY instead of 0

[Tyriar]

Oh I was testing an old version 🤦

[Tyriar]

Looking good!