SPECIFICATIONS
Slightly improve meeting room model
* set chat room as required. Meeting rooms without chat room make no sense;
* allow to translate room summary. As this is displayed in frontend having
it translated makes sense;
* improve label of reached participants, allowing notably to display it
nicely in backend;
LINKS
Coming from internal feedback while deploying online support
Task ID-2314778
PR #55887
X-original-commit 54bd8281cf94ddee77073cf5d6356d847d08d024