Revert "Adapt default logic to adjust scroll position only on backward scrolling (#1002)"

This reverts commit b3b7e7d.

Author: piecyk

packages/virtual-core/src/index.ts

@@ -814,8 +814,7 @@ export class Virtualizer<
       if (
         this.shouldAdjustScrollPositionOnItemSizeChange !== undefined
           ? this.shouldAdjustScrollPositionOnItemSizeChange(item, delta, this)
-          : this.scrollDirection === 'backward' &&
-            item.start < this.getScrollOffset() + this.scrollAdjustments
+          : item.start < this.getScrollOffset() + this.scrollAdjustments
       ) {
         if (process.env.NODE_ENV !== 'production' && this.options.debug) {
           console.info('correction', delta)