scope.chargement is not always null (#172)

* Added starts of language detection. French users will have "Chargement" while everyone else will show "Loading"

Now it doesn't have the Open & Close principle. (https://en.wikipedia.org/wiki/Open/closed_principle)
Open for extension and closed for modification.
This should make it easy for future language translations to be added by
individiuals going forward.

* Made into switch and added more languages

This is perfect now. Together we made perfection

* scope.chargement is not always null, so checking for not may work better.