Makes the tests
```
Can get rooms/{roomId}/members at a given point
Can filter rooms/{roomId}/members
```
pass, by moving `/members` and `/joined_members` to the SyncAPI.
* Update monolith-sample.conf
-Replaced undefined monolith value with server_name (my.hostname.com) value in reference tho ths issue https://github.com/matrix-org/dendrite/issues/2078
* Update monolith-sample.conf
Changed IP to location of monolith server
Co-authored-by: kegsay <kegan@matrix.org>
Without this entry, setups where users have the homeserver on the URL
matrix.myurl.com but want the servername to be myurl.com don't work by default
since clients like element.io can't connect to the homeserver