cubicweb-tracker #2424205 ticket primary view style differs in some cases [done]

as soon as another ticket is displayed in the view (tracability box, identical to...)

prioritynormal
typebug
done in1.11.1
load0.100
load left0.000
closed by#6a2979d8bfcc ticket primary view shouldn't differs because if tracker.css included or not. Plus pick the prefered style. Closes #2424205