Depends on https://github.com/quotient-im/libQuotient/pull/695
Currently basic just to show a working implementation using RoomMember. Currently only the room event and search models are moved over. Will change everything else over once the dependent pr is complete.
Right now they use the standard text but left and right arrow icons,
which is a bit odd, and I think fails to convey what will happen when
clicked especially whern the drawer is closed.
Instead, let's use descriptive tooltip text for both, and a descriptive
icon for the the "this will open the drawer" handle button. For the one
to close the drawer, the default icon seems better, so let's stop
overriding it.
