Context:

Currently some text that is returned from the BE and displayed in optimize is hardcoded in english but it has to use translations.

AT:

• use X-Optimize-Client-Locale header to get the client locale code for translations
• if the code is unknown/invalid/missing fall back to English
• do the translations for management dashboard and instant preview dashboards
• write unit tests to check the translation files

Testing Notes:

The following endpoints should return localised entity names:

api/dashboard/management
api/report/{reportId}/evaluate
api/dashboard/instant
api/entities/names