cubicweb-vtimeline #17047259 update to TimelineJS3 [in-progress]

update to the last version

https://github.com/NUKnightLab/TimelineJS3/releases/tag/3.4.7

prioritynormal
typebug
done in0.6.0
load0.500
load left0.500
closed by<not specified>
patch[views] adapt views to the new JSON format. [in-progress]