It seems that the file picker will resizable by users in 2.3. This patch proposes that the file picker width is increased by 40px and height by 150px to provide a larger view for users browsing repository contents. The current window is slightly too narrow for the EQUELLA repository right now so regardless of this landing for 2.3, it would be recommended for EQUELLA clients to manually modify the width in the CSS to avoid horizontal scrolling. The height increase is a nice to have - it keeps the dialog somewhat in proportion to the increase in width, and also provides a much larger area to view.

Tested locally on the latest Chrome and Firefox, plus on IE8.