🐛 fixes to address #863
On top of the commit that takes 'workspaces' field into account when merging package manifests fix from #867, from that same PR:
- 78990e0/ 2f29ace/ 943a521 fixes: don't classify relative module names as 'aliased' - which addresses the bug that bit the beta testers
- give precedence to bolted-on aliases (webpack) over node native aliases might there be a conflict