message: feat(MessageOptions): make all fields of allowedMentions optional
diff: @@ -103,9 +103,9 @@ export interface MessageOption {
  embed?: Embed
  file?: Attachment
  allowedMentions?: {
  - parse: 'everyone' | 'users' | 'roles'
  - roles: string[]
  - users: string[]
  + parse?: 'everyone' | 'users' | 'roles'
  + roles?: string[]
  + users?: string[]
  }
  }
  