I tried running `azdev style <YOUR_EXT>` in a codespace, but it crashes.

I tried running `azdev style ` in the codespace, but it crashes.

```
@jessehouwing ➜ /workspaces/azure-cli-extensions (patch-1) $ azdev style init
Traceback (most recent call last):
File "/home/codespace/.python/current/bin/azdev", line 8, in
sys.exit(main())
File "/usr/local/python/3.10.8/lib/python3.10/site-packages/azdev/__main__.py", line 39, in main
config_dir=get_azdev_config_dir())
File "/usr/local/python/3.10.8/lib/python3.10/site-packages/azdev/utilities/config.py", line 24, in get_azdev_config_dir
_, env_name = os.path.splitdrive(get_env_path())
File "/usr/local/python/3.10.8/lib/python3.10/posixpath.py", line 134, in splitdrive
p = os.fspath(p)
TypeError: expected str, bytes or os.PathLike object, not NoneType
```

had to run `pip install azdev`, it would be nice if the default codespace config for this repo included `azdev` by default.

_Originally posted by @jessehouwing in https://github.com/Azure/azure-cli-extensions/issues/6793#issuecomment-1730091737_