* refactor(shell)!: remove deprecated open API
`open` has been deprecated since 2.1.0 in favor of tauri-plugin-opener.
This removes:
- the `open` command and its `allow-open`/`deny-open` permissions
(`shell:default` now grants nothing)
- the `plugins > shell > open` configuration; `init()` returns
`TauriPlugin<R>` again
- `Shell::open`, the `tauri_plugin_shell::open` module and
`Error::UnknownProgramName`
- the `open` JavaScript function
- the Android and iOS plugins, since `open` was their only command
* chore(examples): drop the now empty shell:default permission set
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Co-authored-by: Lucas Nogueira <lucas@crabnebula.dev>
