Fixed infinite layout loop in SmoothVirtualizingPanel for unlucky window sizes
Fix: Smooth scrolling wasn't used anymore

Probably only for small log files that load fast enough, before the Loaded priority was handled again.
Fixed duplicating filters (didn't copy all fields)
Added .fl file context menu command "Open single file" and /s command line parameter
New option: Flash window on new item
Remember last AppVersion in the settings