### Is there an existing issue for this?

- [X] I have searched the existing issues

### Feature description

Currently, the default port range for external services is configured in `config.py` as follows:
https://github.com/localstack/localstack/blob/075a6fcfcc29af99e1997d73abea6e88351f3c84/localstack/config.py#L462-L472
This means that the default service range is: (4510,4540]
But the example `docker-compose.yml` states (4510, 4530):
https://github.com/localstack/localstack/blob/075a6fcfcc29af99e1997d73abea6e88351f3c84/docker-compose.yml#L12

The currently stated 20 ports can already be somewhat limiting if a lot of external services are started (f.e. lots of clusters or databases). Therefore the range should be broadened and correctly defined in our example `docker-compose.yml` file.

### 🧑‍💻 Implementation

- [x] Broaden the service port range to 50 ports.
- [x] Update the example docker-compose file.

### Anything else?

_No response_
if (main_container not in container_name) and not docker_env.get("MAIN_CONTAINER_NAME"):
        warns.append(
            'Please use "container_name: %s" or add "MAIN_CONTAINER_NAME" in "environment".'
            % main_container
        )
    def port_exposed(port):
        for exposed in docker_ports:
            if re.match(r"^([0-9]+-)?%s(-[0-9]+)?$" % port, exposed):
                return True
    if not port_exposed(edge_port):
        warns.append(
            (
                "Edge port %s is not exposed. You may have to add the entry "
                'to the "ports" section of the docker-compose file.'
            )
            % edge_port
        )
    if network_mode != "bridge" and not docker_env.get("LAMBDA_DOCKER_NETWORK"):
        warns.append(
            'Network mode is not set to "bridge" which may cause networking issues in Lambda containers. '
            'Consider adding "network_mode: bridge" to your docker-compose file, or configure '
            "LAMBDA_DOCKER_NETWORK with the name of the Docker network of your compose stack."
        )
    
    for warning in warns:
        console.print("[yellow]:warning:[/yellow]", warning)
    if not warns:
        return True
    return False
def get_docker_image_to_start():