npm install: Download all the dependencies defined in thepackage.jsonfile.npm start: Build and run the ui for development purposes (this will not work with backend services) This will update when there are changes to any html or typescript/javascript files, but not css edits. For css changes, just refresh the browser page.npm run clean: Cleans out any installed build artifacts for this project. This will delete thenode_modulesandbuildfolders.npm run re[start|build|install]: Runsnpm run cleanto clean out any leftover build artifacts and then runs the specified start/build/install phase.yarn run yre[start|build|install]: Same as above but use yarn instead of npm.