Removed field employer

- removed field employer from people schema
- removed field id from list of organizations
DEPLOY and DELIVERY commit

[DELIVERED #71383742]
[DELIVERED #71384382]
[DELIVERED #71475042]
Support for dataset specific translations

- added translation.js file required by main code
Changes made by mkulina in test env

- people schema modified
Czech translation.

- Czech translation and made small changes in schemas.
Fixed translations in menu.
Preferred language setup moved to dataset

- dataset now defines preferred language
E-mail added into listFields

- persons schema updated
Security view schema for entity people.