typings: Convert types to interfaces where applicable (#3068)
typings: Convert types to interfaces where applicable (#3068)


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