Fix SSM connectivity and add support for opening sessions in a new terminal window

[sandeshgrangdan]

What’s fixed / changed

• Fixed SSM connection issues when accessing instances.
• Added support to open SSM sessions in a new terminal window for better usability.

Why

• Users faced connection problems with SSM in certain environments.
• Opening sessions in a new terminal improves workflow and allows multiple sessions simultaneously.

How

• Updated SSM connection logic.
• Integrated command to launch sessions in a new terminal window depending on OS environment.