Drag Drop: disable shifting on target droplist and enable replacing

#### Feature Description

Looking at multiple droplists enable to drag one item from droplist 1 to droplist 2. After dropping item 1 on item 2, switch position instead of shifting all items to the next position.

#### Use Case

What we now did is just added this to every droplist:
` (cdkDropListDropped)="drop($event, indexRow)"`

In this 'drop' function we made 2 situations, either `transferArrayItem()` or `moveItemInArray()`

This just moves the items inside the droplist or moves them from one droplist to another. This all works. The downside is though, while you are dragging an item from droplist 1 to droplist 2, you see all the items in droplist 2 shifting a position to the right (When horizontal orientated). While our code says in the background to just switch places.
After the code is done, the shifted items all go back to their original places.

Nell’issue non sono indicati né un file né un test. Inizia tracciando il comportamento delle liste drag-and-drop di Angular CDK e il callback cdkDropListDropped descritto qui; il lavoro è completato quando i drop tra liste sostituiscono visibilmente l’elemento di destinazione senza spostare gli elementi adiacenti.

Scritto dal modello di indicizzazione a partire dal testo della issue.