🚑️ Resolve critical errors when ui-components is packages for external projects

This branch is resolving main issues encoutered when working with PresetOnboarding but this should be checked for other projects for the sake.

• Check every project (and resolve issues)
  • PresetOnboarding
  • LoginPortal
  • WelcomeHub
  • Scenic
  • Poire
• Also adding a procedure that tests specific branch with npm will be important!

/cc @flecavalier