feat: implement Member.id

[Toricane]

About

This pull request is about implementing interactions.Member.id, which lets you use member.id instead of member.user.id.
Another example is ctx.author.id instead of ctx.author.user.id.

Checklist

• I've ran pre-commit to format and lint the change(s) made.
• I've checked to make sure the change(s) work on 3.8.6 and higher.
• This fixes/solves an Issue.
  • (If existent):
• I've made this pull request for/as: (check all that apply)
  • Documentation
  • Breaking change
  • New feature/enhancement
  • Bugfix

[EdVraz]

This does not reflect the current api scheme, which is not including the ID into the member object

Because of this, I am against an implementation of the ID as a members attribute.

In my opinion you could add it as a property to the member class. But it's up to @goverfl0w whether he wants that property there or not.

[Toricane]

Okay, I'll wait for fl0w

[i0bs]

I agree with @EdVraz , I'd personally like to see that as a property method instead. The attributes per model are meant to really respect the API schema.

[Toricane]

Ok I will change it to a property later today

[EdVraz]

LGTM