Feat: add resize handler to Offcanvas.js.

If we could use as default the `.offcanvas` class without modifiers, we then, could add a simplified selector
The selector itself, ignores the .offcanvas class as it doesn't have any responsive behavior
The `aria-modal` addon is to protect us, selection backdrop elements

js/src/offcanvas.js

@@ -206,14 +206,6 @@ class Offcanvas extends BaseComponent {
 
       this.hide()
     })
-
-    EventHandler.on(window, 'resize', () => {
-      // Add this check to help js be aligned with css changes on responsive offcanvas
-      if (this._isShown && getComputedStyle(this._element).position !== 'fixed') {
-        // this._backdrop.hide()
-        this.hide()
-      }
-    })
   }
 
   // Static