UX improvements

[Trass3r]

Tried the standalone app on a big project. Very nice tool!
A few small things I noticed:

• By default the horizontal space isn't fully used. I always have to manually widen the Name tab.
• In the include graph the hover popup just shows the filename, which is redundant if it's already visible. It should (maybe in addition) show the full path. (A similar popup would be useful in other places like Units when you have several CUs with the same filename.)
• Imho the default sorting order should be Duration/Accumulated descending, as this is probably the most useful metric to find the places to start optimizing.
• Table sorting performance could be better, Optimize Function has 1 million entries and takes a while to sort. If you click multiple times the app is rather unusable for a while until it catches up.
• In Parse Template the top entry is <unknown>, not sure what to make of that. When I look at the max json file it seems fine.
• It shows total build time as around 3 minutes while the build actually took like 20. Not sure where that number comes from. The aggregated cost of multiple hours of cpu time seems about right otoh.
• Can't copy a whole row of a table.