Change method name in nextcord.Webhook

[Gangsta-Muffin]

This issue is regarding the following method:

nextcord.Webhook.fetch()

This function is a coroutine.

Fetches the current webhook.

This could be used to get a full webhook from a partial webhook.

New in version 2.0.

Suggestion names
full_webhook()
fetch_webhook()
...

This issue is designed to earmark the change for future purposes. This issue should stay upen until a semver bump (direct orders from the game):
https://discord.com/channels/881118111967883295/881124672056467456/1092908062131630210

[EmreTech]

I wouldn't include "webhook" in the name because it's pretty self-explanatory that a method named fetch in a class named Webhook fetches the webhook from Discord. I would rename the method to something like fetch_full.