Add Guild to TokenRequestResult

[Markus-Rost]

TokenRequestResult can include a full Guild object when using the bot scope: https://canary.discord.com/developers/docs/topics/oauth2#advanced-bot-authorization-extended-bot-authorization-access-token-example

Might be useful to look into discordjs/discord-api-types to export the types.

[reboxer]

Hey, thanks for the pull request, sorry for taking so long.

I've found that some fields returned by the API don't have types for them (could be that they didn't exist at the time of you creating this PR).

For the guild types, i've found these are missing:

    hub_type
    premium_progress_bar_enabled
    latest_onboarding_question_id
    incidents_data
    inventory_settings
    nsfw
    nsfw_level
    region
    stickers
    home_header

For the role type, only this one is missing:

    description

And we are missing the types for stickers, should look something like this:

  stickers: [
    {
      id: '1263717173604384789',
      name: 'cat',
      tags: '🐱',
      type: 2,
      format_type: 1,
      description: '',
      asset: '',
      available: true,
      guild_id: '816025165212549141'
    }
  ]

I'd really appreciate it if you could update the PR to include these missing types, and in case we missed something, they can be added in the future, thanks.

[Markus-Rost]

Guild.home_header, Guild.hub_type, Guild.latest_onboarding_question_id, Guild.incidents_data, Guild.inventory_settings and Role.description are not documented on the developer portal and always returned null for me, I didn't add them as well as deprecated keys. I did add Guild.nsfw despite being undocumented though.