CmdPal: Make new extension template instantly publishable to Store

[jiripolasek]

Description of the new feature / enhancement

Update the new extension template so that a newly created extension is immediately ready for publication to the Microsoft Store, without requiring manual project or manifest edits.

Ref: MicrosoftDocs/windows-dev-docs#5698

Scenario when this would be used?

🐿️

Supporting information

No response

[chatasweetie]

haha, I'm working on this right now, I want to include both the first publication and updates