Fix compatibility with modern VS Code and Node runtimes

[julian-ramos]

This PR fixes upload failures when using ev3dev-browser with recent VS Code releases as described here

Symptoms:

• TypeError: rc is not a function
• TypeError: isDate is not a function

Root cause:

• The extension's SFTP upload path relies on deprecated Node APIs that are no longer available in current VS Code runtimes.

Changes:

• Updated compatibility code to work with modern Node runtimes.
• Applied the minimal TypeScript fixes required to compile successfully.
• Verified that "Download and Run" works again with LEGO EV3 MicroPython.

Tested on:

• macOS
• Current VS Code release
• EV3 MicroPython project

[dlech]

Thanks for having a go at this.

I wonder... could we drop the ssh2-streams dependency instead of patching it and just use ssh2 instead?