Default to running locally with remote development

[Gama11]

closes #284

When you have a remote workspace open, you will suddenly notice that the project manager commands are no longer working. This is because VSCode defaults to running extensions on the remote / as a "workspace" extension: https://code.visualstudio.com/docs/remote/faq#_can-an-extension-access-local-resources-or-apis-when-a-user-is-connected-remotely

This fixes this by changing the default to "ui", so Project Manager runs locally. I'm not sure it makes much sense to run Project Manager remotely, but having it in the "extensionKind" array still allows for this.

[Gama11]

Note: this only makes it so you can still use Project Manager to switch to another workspace while you're inside of a remote workspace so you're not "stranded" there. It still doesn't know anything about remote workspaces: #318

[alefragnani]

Because the extension needs to access local resources (projects.json file), I think using only ui is a better approach (for now).

As I commented here I found a secure way to handle the remote environment, so I'll continue from there.

Thank you for your continuous collaboration 👏