fix `start` script to serve from `./dist` folder
fix `start` script to serve from `./dist` folder

fix `start` script to serve from `./dist` folder

[#172253253]
https://www.pivotaltracker.com/n/projects/2441249/stories/172253253

concord-consortium/cloud-file-manager,concord-consortium/cloud-file-manager,concord-consortium/cloud-file-manager,concord-consortium/cloud-file-manager