fix: force all the image in the horizontal scroller to load immediately for height calculation

Author: Arukuen

src/block/horizontal-scroller/frontend-horizontal-scroller.js

@@ -17,10 +17,12 @@ class StackableHorizontalScroller {
 			// get all links, because we will need to disable them during drag
 			const children = el.querySelectorAll( '.stk-block-link, a' )
 
-			// Get all images and set draggable to false
+			// Get all images, set draggable to false
+			// and loading to eager to make the browser calculate the grid height correctly
 			const images = el.querySelectorAll( 'img' )
 			images.forEach( image => {
 				image.draggable = false
+				image.loading = 'eager'
 			} )
 
 			// prevents redirecting to the inner column link