A LOT of gpx tracks fill entire screen with popup information

[Zverikk]

After downloading tens of thousands of GPX points for area, there's probably several hundred tracks in use. When moving mouse cursor over gpx layer, all those tracks are described in a VERY HUGE pop-up, which fill entire screen and is hard to get rid of.

I suggest either not displaying this popup at all, instead moving tracks information in "Properties" dialog.

[Cobra]

This gets really annoying when said popup fills your screen without any delay after moving the cursor over the layer box - and beyond (and not letting the cursor stay still in that box). Sometimes you can't really get rid of that popup without leaving josm's window for some seconds.

I support the idea of moving this into some normal dialog since there are some links in the popup which you can't click or copy at the moment.

[bastiK]

(In [3490]) fixed #5349 - A LOT of gpx tracks fill entire screen with popup information