Test langauge translation in palm demo

[ghassanmas]

This is a todo for each langauge reviewer, to make sure the langauge exists in the next release.

The steps to check that the language exists:

• Login to the demo instance url https://palm.demo.overhang.io/
  • email: [email protected]
  • passsword admin
• After logging in change langauge settings at https://apps.palm.demo.overhang.io/account/#site-preferences
• Interact with the platform, try to enroll in a coucrse, create a course..etc

Report if you face any issue, spesfically if there is part of the platform you already translated but you don't see it.

This issue relate to

• Internationalization is failing for certain languages and certain pages wg-build-test-release#267