Update generate component script to use TypeScript

[matthewgallo]

What will this achieve?

When we create new components, there is a generate component script that can be run to scaffold the correct setup of files, configuring package-settings, exporting the new component. This is an issue to think about when the right time is to have the actual component itself moved from .js to .tsx file.

I don't think we need to set a timeline on this for now, but wanted to make sure it's something we plan for later on.