* Use nav for new room list and label sections
The old room list had a nav element but it was missed in the new one,
so add it and albel the sections. Also remove the test ID and use
this instead.
* Update snapshots
* Use the function we define above
* Implement enough of the new store to get a list of rooms
* Make it possible to swap sorting algorithm
* Don't attach to window object
We don't want the store to be created if the labs flag is off
* Remove the store class
Probably best to include this PR with the minimal vm implmentation
* Create a new room list store that wraps around the skip list
* Create a minimal view model
* Fix CI
* Add some basic tests for the store
* Write more tests
* Add some jsdoc comments
* Add more documentation
* Add more docs
