Swidget should change language with hostapp

[prode81]

Currently, changing the language within the hostapp has no effect on the swidget. This might as well be a design decision, but seems kind of odd, as every project would need to implement its own behavior, which would make a swidget incompatible to other hostapps and put restrictions on a hostapp, which swidgets can be loaded.

I would strongly support adding a default behavior for this. Some possible solutions with variations might be:

• Hostapp always triggers language change in swidgets (while swidget falls back to default lang, if the hostapp-lang is not implemented)
• Swidget loader lets you configure, if language change is affecting swidget
• Swidgets i18n functions automatically fetch the current language from hostapp
• Default behaviour based on interconnection
• ...

We also should decide, if a Swidget may trigger the language-switch globally for the hostapp (if this should be a vaild usecase at all).

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Acting on behalf of Daimler TSS GmbH.

[BlackDark]

IMO the language should be changed everywhere.

[prode81]

@BlackDark should we put this on hold, till decision about webpack foundation is made?

[BlackDark]

@BlackDark should we put this on hold, till decision about webpack foundation is made?

Yes, we should take a look on this after #32

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