Unify language type definitions in solution

[acn-sbuad]

Description

Several practices are used when defining language types in Altinn Apps, and Altinn Platform. These should be unified and there should exists a mapping between Altinn II language types and T3.0 language types

Considerations

• Could this mapping be done in t.30? Does this introduce more work then doing it in Bridge?
• How should this change be introduced in order to avoid having several ways of dealing with languages
• Eventually T.30 will include more languagetypes than what is avaiable in Altinn II.
• Windows CodePages language standard is used to set the enum values in SBL, should these values be used in T3.0?

Acceptance criteria

• There is a single agreed upon way to define languages across the solution: two-letter language definitions
• There should be no more than two standards, ideally only one, but we may differentiate between frontent and backend.

Specification tasks

- [ ] Specify language types and enum values

Development tasks

• [x] Use two-letter language definitions in code
  • [x] src\Altinn.Platform\Altinn.Platform.Models\Models\Profile\Enums\Language.cs
  • [x] Define language as string in app frontend
• [x] Language handling in relation to datamodel
  • [x] src\studio\src\designer\backend\ModelMetadataModels\Language.cs
  • [x] src\Altinn.Apps\AppTemplates\AspNet\Altinn.App.PlatformServices\ModelMetadata\Language.cs
• [x] Define language as string in app frontend: \src\Altinn.Apps\AppFrontend\react\shared\src\types\index.ts
• [x] implement a mapper in SBL Bridge for use in shared models where Language/LangugageType appears. E.g. ProfileSettingPreference in UserProfile.cs
• [x] Documentation
• [x] Manual test (if needed) Verify the Language in GET Profile towards platform

[altinnadmin]

Windows CodePages language standard is used to set the enum values in SBL, should these values be used in T3.0?

We should not use windows language identifiers in Altinn 3. We should use iso 639-1.

[nkylstad]

mapping in src/Altinn.Apps/AppFrontend/react/altinn-app-frontend/src/shared/resources/language/languages.ts also needs to be updated when this is done.

[acn-sbuad]

Completed changes related to platform and app frontend. What remains is handling Language.cs defined in app backend and designer. not sure if they are in use or not. Moving back to backlog

[jeevananthank]

ProfileSettingPreference of an user is verified.