message: Fix button types for xs size
diff: @@ -6,7 +6,7 @@ export interface IButton {
  /**
  * The size of the button
  */
  - size?: "sm" | "md" | "lg";
  + size?: "xs" | "sm" | "md" | "lg";
  /**
  * If `true`, the button will show a spinner.
  */
  