Added to Resend.php Facade: Contact, Audience and Batch methods

[cheddZy]

Small addition for missing methods to the Facade for better developer UX.

[jayanratna]

Thanks for submitting this PR @cheddZy

This is a great addition but I think we can make it better. Instead of using actual methods in the Facade class, we should add a comment to the top of the class to make the developer experience better.

Something like the Laravel DB Facade:

<?php

namespace ...;

/**
 * @method static \Illuminate\Database\ConnectionInterface connection(string $name = null)
 * @method static \Illuminate\Database\Query\Builder table(string $table, string $as = null)
 ...
 * @see \Illuminate\Database\DatabaseManager
 */

The reason I suggest this is because the underlying class that supports this Facade already has the methods that the Facade class defines. Eg. Resend::contacts()

[cheddZy]

Hey - great suggestion, I'll get right on that. Completely slipped my mind we can do it with PHPDoc this way!

[cheddZy]

Preoccupied right now but I noticed that I forgot to add some PHPDoc comments for the methods inside the class. I'll get on that in a little bit.

[cheddZy]

Would like to mention that I believe the class originally only has properties and not the methods. Could I get a sanity check on this from someone?

[jayanratna]

I've approved automated tests for this PR. I'll also do some manual testing shortly.

[jayanratna]

Apologies that I didn’t get time to review this earlier, but I’m really liking the latest changes. 💯

[cheddZy]

No worries, thanks for the quick reply! Whenever you get the time for it let me know if there's anything else I can improve. It's a pretty small change but hoping it's meaningful enough.