maxRowsPerPage does not jump to top on page switch

[anetz89]

First of all, great job! So far the best image gallery I found as npm package!

Using the maxRowsPerPage option adds two navigation buttons at the bottom of the gallery page. Whenever you click on one of those buttons, the page changes (as expected), but the vertical scroll position stays the same. This effect occurs, whenever the rows of the gallery extend the visible part of the browser window (using many images, for example of a wedding :) ).

Expected behavior would be a jump to the top of the gallery on page change.