create tauri-app --beta does not initialise a working project

[mon]

I'm calling this a docs issue because examples to me count as documentation, but it might be better classified as a bug.

I setup a new npm+svelte+TS Tauri project after the Beta announcement with npm create tauri-app@latest -- --beta.

It creates an invalid tauri.conf.json, which is easily rectified by just poking different sections with vscode's autocomplete (due to the new config layout in tauri-apps/tauri#8723).

It also creates invalid capabilities schemas (Permission shell:open not found, expected one of...). Fixing that is less obvious to a new user.

[mrcnk]

Can confirm, and removing shell:open from src-tauri/capabilities/main.json leads to a blank screen in the simulator: