fix vite plugin configuration for mutliproject sbt

without 'projectID' vite plugin uses root project to run fastLinkJS
and that results in `import scalajs:main.js` attempting to import
common/.js/main.js which does not exist

main.js

@@ -1,6 +1,5 @@
 import './style.css'
-import './frontend/target/scala-3.2.0/frontend-fastopt/main.js'
-// import 'scalajs:main.js'
+import 'scalajs:main.js'
 
 // // const socket = new WebSocket("/api/subscribe");
 // const socket = new WebSocket("ws:0.0.0.0:5173/api/subscribe");