Error when using the local/localhome storage driver

## Describe the bug

When using the "local" or "localhome" storage driver, an error occurs and logged in users can't upload files.

The following error occurs a few times in the log:

`ERR failed to list storage spaces error="error: not supported: list storage spaces" filters=[{"Term":{"SpaceType":"project"},"type":4},{"Term":{"User":{"idp":"https://...","opaque_id":"26996839-94fc-4158-a7b6-fb00e1d20f92"}},"type":6}] line=github.com/cs3org/reva/v2@v2.13.2/internal/grpc/services/storageprovider/storageprovider.go:554 pkg=rgrpc service=storage-users status={"code":14,"message":"not implemented","trace":"00000000000000000000000000000000"} traceid=00000000000000000000000000000000`

## Steps to reproduce

Steps to reproduce the behavior:

1. Configure the environment variable `- "STORAGE_USERS_DRIVER=local"` or `- "STORAGE_USERS_DRIVER=localhome"` in the docker-compose.yml file.
2. Log in using the web UI.

## Expected behavior

After logging in, the user should be able to upload files. No error should appear in the log.

## Actual behavior

An error is repeated in the logs and the user can't upload files:


## Setup

docker-compose.yml:

```yml
services:
app:
image: owncloud/ocis:3.0.0-rc.3
container_name: ocis
environment:
- "OCIS_URL=https://..."
- "OCIS_LOG_FILE=/dev/stdout"
- "OCIS_LOG_PRETTY=true"
- "OCIS_LOG_LEVEL=info"
- "OCIS_LOG_COLOR=true"
- "PROXY_HTTP_ADDR=172.100.0.3:9200"
- "PROXY_TLS=false"
- "OCIS_INSECURE=true"
- "PROXY_OIDC_INSECURE=true"
- "PROXY_ENABLE_BASIC_AUTH=false"
- "IDM_ADMIN_PASSWORD=..."
- "IDM_CREATE_DEMO_USERS=false"
- "PROXY_AUTOPROVISION_ACCOUNTS=true"
- "OCIS_OIDC_ISSUER=https://..."
- "PROXY_OIDC_REWRITE_WELLKNOWN=true"
- "WEB_OIDC_CLIENT_ID=ocis-web"
- "PROXY_OIDC_ACCESS_TOKEN_VERIFY_METHOD=none"
- "STORAGE_USERS_DRIVER=local"
ports:
- "9200:9200"
volumes:
- "./persistent/config:/etc/ocis"
- "./persistent/data:/var/lib/ocis"
entrypoint: ["/bin/sh"]
command: ["-c", "ocis init || true; ocis server"]
user: "1000:1000"
restart: unless-stopped
```

## Additional context

The use case behind using the local/localhome driver is to have the directories and files stored as-is on the filesystem instead of blobs (decomposed fs).