[Pop hover] Improve pop hover interactions with map objects

[bruhnild]

• [ ] expand the size of the hovered object

Example on : https://cartes-elections.makina-corpus.net/fougeres/

• [ ] remove the timer before displaying a tooltip in order to allow showing a lot of tooltips when the cursor moves

Examples of immediate and pleasant interactions:

• https://laviedelariviere.valleedulot.com/

• https://sites-formations.univ-rennes2.fr/mastersigat/WebMaps/DVF_IDF.html

• https://cartes-elections.makina-corpus.net/departementales-2015/resultats-cantons.html?dep=32

• [ ] regroup all the informations of the hovered entities layers in the same pop hover block