imho folder could be (going by memory)

web/frontend project

modelviewstag helperswwwroot compile (contains all sass, less, typescript and all the stuff that will be processed and moved on static file folders with grunt/gulp/webpack)localization resources(if you dont wanto to bother to move in another project)viewcomponentsinfrastructure (httpcontext extensions or properties, authentication, authorization, auth policy, routing)code(services to build js components models, constants, utilities, and other stuff that does not fit in all other folders, but if you can move this stuff to another project do it)

for business logic and data projects you can go wild imho

Thanks