--move all the logic around parabolic effect signals
into one place, ParabolicManager. The ParabolicManager
is responsible for triggering all the messages to tasks
that are neighbour to the hovered task. This will
help a lot to catch cases such as separators and proper
clearing zoom.
--when the attention animation is played for a task
and the user hovers that task, the animation is ended
smoothly and if the mouse is still hovering the task,
the tasks are restored correctly
--the internal separator codebase has been simplified
a lot and uses a new approach that provides a smoother
parabolic effect. This is part1 concerning improve separators,
in part2 applets separator will to try to be improved
--new architecture for the internal tasks separator,
one of which we can build upon for the future... No
breakage in the animation now, it is much smoother and
cleaner... but... it is needed to update all the pieces
around in order to work properly on all cases...