Support terminal creation on web worker extension host when there's remote authority

[jeanp413]

Fixes #300895

[jeanp413]

cc @meganrogge @Tyriar could you take a look 🙏

[Copilot]

Pull request overview

Enables vscode.window.createTerminal* from the web worker extension host when running in a web context that has a remote authority (eg. VS Code Web connected to a remote), addressing the “Not supported” error in that scenario.

Changes:

• Injects IExtHostInitDataService into WorkerExtHostTerminalService to detect whether a remote authority exists.
• Allows createTerminal/createTerminalFromOptions in the worker ext host only when initData.remote.authority is present; otherwise continues throwing NotSupportedError.

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[jeanp413]

[Tyriar]

Not tested but lgtm

[meganrogge]

Thanks!