Zooming the wrong part of the image if the cursor is placed over the image before the image was loaded

[duxor]

Steps to reproduction:

1. Generate the images page (with buttons or thumbnails)
2. Click on the image in the middle, so that the cursor is placed over the opened image
   (there is a MatDialog component with the image with zooming feature, so the cursor will be placed over the image in the mat-dialog).

There are the wrong thumbSize values during component initialization (there is an opening animation).