Update import workflows command for user management

[ivov]

./packages/cli/bin/n8n import:workflow --input=file.json
./packages/cli/bin/n8n import:workflow --separate --input=myDir/

Pinned chokidar to fix build: #2696

[krynble]

I'd say we add an optional CLI argumento userId that allows you to select to which user save the workflows. Still uses owner in case it doesn't exist.

Also I vote for the getInstanceOwner function here to be the same as the one provided by the UserManagementHelper so we consolidate the healing behavior on a single place, for the reset command.

Tell me your thoughts about this @ivov

[BHesseldieck]

just one naming suggestion otherwise 🚀