Bug#999914: virtualbox-qt: file picker on Linux KDE Plasma does not handle mouse, unusable

[Tobias Frost]

Control: forwarded -1 https://www.virtualbox.org/ticket/20222
Control: tags -1 fixed-upstream
Control: fixed -1 6.1.34-dfsg-1
Control: close -1

According to upstream bugtracker fixed with 6.1.34