chore: make gnokeykc use gnokey's basecfg (#1531)

Related with #1233.

## Before

```
$ gnokeykc --help                                                                                                                                                                                                                                                            
[...]
  -config ...                     config file (optional)                                                                                                                                                                                                                                                 
[...]
```

## After

```
$ gnokeykc --help                                                                                                                                                                                                                                                                 
[...]
  -home /Users/moul/Library/Application Support/gno  home directory                                                                                                                                                                                                                                      
[...]
```

<details><summary>Contributors' checklist...</summary>

- [x] Added new tests, or not needed, or not feasible
- [x] Provided an example (e.g. screenshot) to aid review or the PR is
self-explanatory
- [x] Updated the official documentation or not needed
- [x] No breaking changes were made, or a `BREAKING CHANGE: xxx` message
was included in the description
- [x] Added references to related issues and PRs
- [x] Provided any useful hints for running manual tests
- [x] Added new benchmarks to [generated
graphs](https://gnoland.github.io/benchmarks), if any. More info
[here](https://github.com/gnolang/gno/blob/master/.benchmarks/README.md).
</details>

---------

Signed-off-by: moul <94029+moul@users.noreply.github.com>
Co-authored-by: Morgan <git@howl.moe>
Co-authored-by: Hariom Verma <hariom18599@gmail.com>

contribs/gnokeykc/main.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"os"
 
+	"github.com/gnolang/gno/gnovm/pkg/gnoenv"
 	"github.com/gnolang/gno/tm2/pkg/commands"
 	"github.com/gnolang/gno/tm2/pkg/crypto/keys/client"
 	"github.com/zalando/go-keyring"
@@ -12,7 +13,9 @@ import (
 func main() {
 	stdio := commands.NewDefaultIO()
 	wrappedio := &wrappedIO{IO: stdio}
-	cmd := client.NewRootCmd(wrappedio)
+	baseCfg := client.DefaultBaseOptions
+	baseCfg.Home = gnoenv.HomeDir()
+	cmd := client.NewRootCmdWithBaseConfig(wrappedio, baseCfg)
 	cmd.AddSubCommands(newKcCmd(stdio))
 
 	cmd.Execute(context.Background(), os.Args[1:])