#912 When opening in Tree-view, the info is always scrolled down

[hurda77]

When setting Mediainfo to use Tree-view, the mediainfo is always scrolled to the end, although I assume the most sought after infos are at the top.

For comparison, the Text-view is not scrolled down.

[Jerome Martinez]

No ETA (I want to trash this GUI and use another UI toolkit, so I am not a lot motivated into debugging the current GUI)