Since all of the port operations require the codespace to be running, we
need to disallow these operations when there's a pending op since we
can't start the codespace in this state.
Since the API already disallows this, this is basically cleaning up the
error messages that the user sees in this state
Old error message:
```
$ gh cs ports forward 80:80
? Choose codespace: redacted
Starting codespace ⣻error connecting to codespace: error starting codespace: HTTP 422: your codespace has an operation pending: updating to a sku with a different amount of storage; please wait until this operation is complete (https://api.github.com/user/codespaces/cwndrws-redacted/start)
```
New error message:
```
$ gh cs ports forward 80:80
? Choose codespace: redacted
codespace is disabled while it has a pending operation: Changing machine types...
exit status 1
```
The initial intention for this change was to disallow users to open a
codespace in VS Code if the codespace has a pending operation. This also
adds a side-benefit of presenting the user an error before waiting for
VS Code to open if they provide an invalid codespace to open.
Since the API already disallows this, this pretty much just cleans up
the error reporting to the user.
Example of old error:
```
$ gh cs logs -c cwndrws-redacted
Starting codespace ⣽connecting to codespace: error starting codespace: HTTP 422: your codespace has an operation pending: updating to a sku with a different amount of storage; please wait until this operation is complete (https://api.github.com/user/codespaces/cwndrws-redacted/start)
exit status 1
```
Example of new error:
```
$ gh cs logs -c cwndrws-redacted
codespace is disabled while it has a pending operation: Changing machine types...
exit status 1
```
Since the API already disallows this, this makes the error cleaner and
more explicit when a user is trying to start/ssh into a codespace that
has a pending operation.
Example of the old error message:
```
$ gh cs ssh -c cwndrws-redacted
Starting codespace ⣽error connecting to codespace: error starting codespace: HTTP 422: your codespace has an operation pending: updating to a sku with a different amount of storage; please wait until this operation is complete (https://api.github.com/user/codespaces/cwndrws-redacted/start)
exit status 1
```
Example of the new error message:
```
$ gh cs ssh -c cwndrws-redacted
codespace is disabled while it has a pending operation: Changing machine types...
exit status 1
```
I always get tripped up whenever trying to list my codespaces, adding
`ls` as an alias to `list` feels natural enough.
Co-authored-by: Mislav Marohnić <mislav@github.com>
