Shell integration: Support OSC 1337 ; CurrentDir=<cwd> ST for updating cwd

[Tyriar]

Part of #155639

We want to support other common shell integration sequences as fallbacks to the VS Code specific one (OSC 633 ; P ; Cwd=<Cwd> ST)

Code pointer:

vscode/src/vs/platform/terminal/common/xterm/shellIntegrationAddon.ts

Lines 338 to 347 in 4f0b05c

	case 'Cwd': {
	// TODO: Ideally we would also support the following to supplement our own:
	// - OSC 1337 ; CurrentDir=<Cwd> ST (iTerm)
	// - OSC 7 ; scheme://cwd ST (Unknown origin)
	// - OSC 9 ; 9 ; <cwd> ST (cmder)
	this._createOrGetCwdDetection().updateCwd(value);
	const commandDetection = this.capabilities.get(TerminalCapability.CommandDetection);
	commandDetection?.setCwd(value);
	return true;
	}

[babakks]

@Tyriar I'm taking this.

[Tyriar]

@babakks sounds good 👍

[babakks]

@Tyriar I've just submitted the PR. You can check it anytime you want.

[connor4312]

@Tyriar can you add verification steps for this?

[Tyriar]

• Disable shell integration
• Open pwsh 7+
• Run the following:

[Console]::Write("`e]633;A`a")
[Console]::Write("`e]633;B`a")
[Console]::Write("`e]633;C`a")
[Console]::Write("`e]633;D`a")
[Console]::Write("`e]1337;CurrentDir=/home/something`a")

It should change the terminal tab's description to something.