Don't set focus initially

This content type sets focus on the first image initially. When setting focus, the browser will make sure the focused element is visible and might cause the browser to scroll the page if there is content above the H5P. Could you please remove this initial focus? At least this line should be removed (but it might be more): https://gitlab.com/icfoss/H5P-ImageSequencing/blob/v2_development/scripts/h5p-image-sequencing.js#L571