fix(Popup|Visibility): update types definitions for props (#4019)

Author: daigof

src/behaviors/Visibility/Visibility.d.ts

@@ -59,7 +59,7 @@ export interface StrictVisibilityProps {
    * Value that context should be adjusted in pixels. Useful for making content appear below content fixed to the
    * page.
    */
-  offset?: number | string | number | string[]
+  offset?: number | string | (number | string)[]
 
   /** When set to false a callback will occur each time an element passes the threshold for a condition. */
   once?: boolean

src/modules/Popup/Popup.d.ts

@@ -59,7 +59,7 @@ export interface StrictPopupProps extends StrictPortalProps {
   offset?: number | string
 
   /** Events triggering the popup. */
-  on?: 'hover' | 'click' | 'focus' | 'hover' | 'click' | 'focus'[]
+  on?: 'hover' | 'click' | 'focus' | ('hover' | 'click' | 'focus')[]
 
   /**
    * Called when a close event happens.