Update developer documentation to use JS import syntax
Update developer documentation to use JS import syntax

jbeezley/girder,manthey/girder,Kitware/girder,girder/girder,girder/girder,Xarthisius/girder,jbeezley/girder,adsorensen/girder,RafaelPalomar/girder,kotfic/girder,girder/girder,Kitware/girder,RafaelPalomar/girder,Kitware/girder,RafaelPalomar/girder,Xarthisius/girder,Xarthisius/girder,data-exp-lab/girder,adsorensen/girder,RafaelPalomar/girder,kotfic/girder,manthey/girder,jbeezley/girder,RafaelPalomar/girder,adsorensen/girder,data-exp-lab/girder,data-exp-lab/girder,adsorensen/girder,adsorensen/girder,manthey/girder,jbeezley/girder,kotfic/girder,data-exp-lab/girder,Xarthisius/girder,kotfic/girder,Kitware/girder,manthey/girder,girder/girder,data-exp-lab/girder,Xarthisius/girder,kotfic/girder