Fix DerivedData lookup for project names with spaces

Tuist now correctly locates DerivedData for projects and workspaces whose names contain spaces. Previously, DerivedDataLocator used the raw basename as the DerivedData directory prefix while Xcode sanitizes spaces to underscores, causing Tuist to search the wrong directory. Build insights (and commands like tuist inspect build) now find Xcode activity logs for projects named with spaces.