TODOs

### Clear and concise description of the problem

N/A

### Suggested solution

# TODO
- [x] sub `show` command (default `show` command)
- [x] support `--catalogOnly` option on `show` sub commend
- [ ] support `switch` command (`--target`, `--to`)
- [ ] support `update` sub command
- [ ] named catalogs changing on dependency

### Alternative

_No response_

### Additional context

_No response_

### Validations

- [x] Read the [Contributing Guide](https://github.com/kazupon/pnpmc/blob/main/CONTRIBUTING.md).
- [x] Check that there isn't already an issue that request the same feature to avoid creating a duplicate.

Start by reading the CONTRIBUTING.md guide and locating the existing implementation of the completed `show` command and its `--catalogOnly` option. Define the scope for `switch` with `--target` and `--to`, then `update`, including named catalogs changing on dependency; the work is done when these unchecked TODOs are implemented and their behavior is verified.

Written by the indexing model from the issue text.