Display results in "Results" part

Display the results by party with null, blank and abstention in the Results parts

changed milestone to %Calcul and visualization

added Front end label

assigned to @apoyen

added To Do label

added Doing label and removed To Do label

created branch 56-display-results-in-results-part to address this issue

mentioned in merge request !53 (merged)

closed via merge request !53 (merged)

mentioned in commit 9726e176

removed Doing label