* Preparation for initial Flatpack and FlatHub integration
This integrate some initial changes required for Flatpack and distribution from FlatHub.
Also added some resources that will be used for packaging on Linux.
* Address gdkchan comment
* added trace log level
* use trace log level instead of debug ( #1547)
* alignment #1547
* moved trace logs toggle at the bottom #1547
* bumped config file version #3096
* added migration step #3096
* setting moved to the dev section #1547
* performance warning displayed when trace is enabled #1547
