Finalise the ts-for-gir and gi.ts fusion

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Things we need to finish to get out of beta:

• Replace the ts-for-gir parser with gi.ts/parser
• CI tests should all be passed
• Publish types on NPM
• Publish types on JSR
• Allow all versions to be imported without a version string (e.g. gi://Gtk instead of gi://Gtk?version=4.0), implemented in Allow to toggle between package.json support + further cleanups from the gi.ts merge #176
• Cleanup Code
• Update documentation
• copy command #162
• Refactor based on the review of copy command #162
• Collect user feedback
• Fix user problems

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@ewlsh I have made a refactor entry here so that it doesn't get lost

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I think most of the important work of this kind is now complete.