Obtain the list of languages from I18N based on the translated files

[goneall]

Currently in the file globals.js we have a dictionary of supported languages. It would be more supportable if the list of supported languages was derived from the translation files and remove the need for this dictionary.

From reading the documentation on I18Next, there is a property i18next.languages that should contain all languages. However, this property does not seem to be initialized. @openchain-visolve do you know of a way to make this function work?