v4.0.0

• Transitions are now visually attached to circles properly, without any gaps
• Added more information to the included README
• Added ability to create line waypoints
• Replaced snapping to grid with snapping to existing elements
• Inner elements now move when the owner is moved
• Reworked element resizing
• Improved image exporting; added PDF export
• Added Note and Boundary elements
• Palette can now be switched between left and right in settings
• Operation Show no longer puts all the elements on the same spot
• Added delete key shortcut
• Added mac-ARM build (alpha)
• Improved Linux distro compatibility
• Improved save file dialog
• Fixed version information dialog
• Updated multiple dependencies
• Other minor fixes and improvements