💡 [Feature]: Add support for multiple SPFx projects

[Adam-it]

🎯 Aim of the feature

Currently, SPFx Toolkit supports a single SPFx project scaffolded by yo or TT.
What we could add is support to manage multiple SPFx projects, so multiple packages.
The extension should ask on which project the specified action or task should be executed or on all.

📷 Images (if possible) with expected result

No response

🤔 Additional remarks or comments

example of an approach that has multiple SPFx projects and npm workspace in a root folder above those projects to manage the dependencies