[Fix] - add logs

[gabrielMatosBoubee]

No description provided.

[mcandeia]

I'd say metadata can't be a string but rather an object, however there's no way to parse data without metadata information, so my preference is to rethrow the error instead of creating inconsistent behaviours returning empty strings and arbitrary data.

[mcandeia]

Suggested change

	return { metadata: "", binaryData };
	throw error;

[mcandeia]

Also, if there are any unhandled exceptions you can set a global unhandled rejection handler preventing the application to panic when such case happened.

here: https://github.com/deco-sites/simpletunnel/blob/main/main.ts

globalThis.onunhandledrejection = function() {
    console.error("Unhandled rejection");
};

rectifying that this should be placed on simpletunnel rather than here