* Show day counts in call durations
Previously call durations over a day long would be truncated, for example displaying as '2h 0m 0s' instead of '1d 2h 0m 0s'.
* Fix strict mode errors
* Fix strings
Co-authored-by: Travis Ralston <travisr@matrix.org>
* Use native js-sdk group call support
Now that the js-sdk supports group calls natively, our group call implementation can be simplified a bit. Switching to the js-sdk implementation also brings the react-sdk up to date with recent MSC3401 changes, and adds support for joining calls from multiple devices. (So, the previous logic which sent to-device messages to prevent multi-device sessions is no longer necessary.)
* Fix strings
* Fix strict type errors
