December Hotfix: Version 0.6.2-479

UX:

Removed flat maps from Official maps, they still exist as templates when creating a new map
Dragonborn parts now have correct thumbnails

Fixed connection issues when multiple players join at the same time
Fixed an issue where the server could not be properly started because of missing ambience
Die results are now properly shown again after rolling
Die results now show the skill or ability used for the roll
Fixed animations not grounded for various miniatures
Floortraps are now deletable and display a context menu when clicked
Spells, Actions & Attacks now properly show their details when clicked on
Saving throws are now correctly calculated