Internationalization and Localization for all Entities (Data Objects)

[rseedorff]

As TeamDojo user i would like be able to to translate all Team Dojo specific entities (Data / Domain Objects) in any language. As for now (TeamDojo v1) this is only possible for all UI Components but not the internal data entities.

TeamDojo should support an easy way to translate all entities in different languages.

At least two languages are required (e.g. englisch + native language).

• Rename origin fields with suffix EN.
• Add German fields with suffix DE.
• Add German demo data.
• Add language switch in frontend.
• known issues:
  • Fix ignored backend tests. #104
  • Fix ignored frontend tests. #106
  • Localize AchievableSkill. #107

[Weltraumschaf]

Entities identified for i18n:

class Badge {
    titleDE
    titleEN
    descriptionDE
    descriptionEN
}

class Dimension {
    titleDE
    titleEN
    descriptionDE
    descriptionEN
}

class Level {
    titleDE
    titleEN
    descriptionDE
    description_EN
}

class Skill {
    titleDE
    titleEN
    descriptionDE
    descriptionEN
    implementationDE
    implementationEN
    validationDE
    validationEN
}

class Training {
    titleDE
    titleEN
    descriptionDE
    descriptionEN
}