provide a way to flatten sidebar tree structure so it only includes directories with files, like intellij
some projects have an annoying amount of directories, without files, just more directories to navigate down till you get to files.
intellij and some other editors.
provide a way to flatten the directory tree. so instead we have a list of shortened dir names for those dirs that contain src files.
allow a view with a list like structure:
Customer support service by UserEcho