action.js. Fix errors found by eslint (#1796)
action.js. Fix errors found by eslint (#1796)


laurentj/lizmap-web-client,laurentj/lizmap-web-client,3liz/lizmap-web-client,3liz/lizmap-web-client,rldhont/lizmap-web-client,rldhont/lizmap-web-client,3liz/lizmap-web-client,nboisteault/lizmap-web-client,nboisteault/lizmap-web-client,3liz/lizmap-web-client,nboisteault/lizmap-web-client,nboisteault/lizmap-web-client,laurentj/lizmap-web-client,rldhont/lizmap-web-client,laurentj/lizmap-web-client,rldhont/lizmap-web-client