feat(GuildEmoji): add deletable getter (#2535)
feat(GuildEmoji): add deletable getter (#2535)

* feat(GuildEmoji#deletable)

* Update: Discord API returns 50001

When you try to get or delete a managed emoji from the API, you get a 50001 (Missing Access) error code.

hydrabolt/discord.js,Lewdcario/discord.js,appellation/discord.js,hydrabolt/discord.js,SpaceEEC/discord.js,Lewdcario/discord.js,appellation/discord.js,SpaceEEC/discord.js,hydrabolt/discord.js,SpaceEEC/discord.js,Lewdcario/discord.js,appellation/discord.js