Add new /demo route to create a copy of a localized demo room template
The route uses a guard to call the duplication endpoint and then redirect to the newly created room.
Different demo room IDs can be set for i18n.
If no room ID has been set for the current i18n, the ID for the default
i18n is used instead (demo.en
).
New UI properties: demo.<Lang Code>
instead of demo
Edited by Daniel Gerhardt