Feature: join script paths in one line

[Bessonov]

ATM I get following output (7 lines overhead):

start:all
  | -- start:frontend
  |      \-- $ pnpm --filter frontend start
  | -- start:backend
  |      \-- $ pnpm --filter backend start:watch
  | -- start:backend-nodemon
         \-- $ pnpm --filter backend start:nodemon

It would be nice to join the paths if there is enough horizontal space to save vertical space (only 3 lines overhead):

start:all / start:frontend / $ pnpm --filter frontend start
start:all / start:backend / $ pnpm --filter backend start:watch
start:all / start:backend-nodemon / $ pnpm --filter backend start:nodemon