NodeJs Version: 23.9.0
Lavalink Version: 4.0.8
Magmastream NPM Package Version: 2.8.6

Describe the Bug
In the magmastream docs, the Last FM API key is marked as optional. However, TypeScript will throw a compile time error if this property is not included within the Manager constructor. Additionally, passing an empty string is not allowed, as magmastream will throw a runtime error:

    if (typeof lastFmApiKey !== "undefined" && (typeof lastFmApiKey !== "string" || lastFmApiKey.trim().length === 0)) {
        throw new TypeError('Manager option "lastFmApiKey" must be a non-empty string.');
    }

To Reproduce
Steps to reproduce the behavior:

1. Create an instance of Manager, without Last FM API key
2. Observe as you are unable to compile your code (assuming TypeScript)

Expected Behavior
An instance of Manager can be created without specifying a Last FM API key.