use new room last event filter

[WilsonLe]

latest main of matrix sdk has implemented a new parameter in the class Client called shouldReplaceRoomLastEvent that receives 2 parameters: a current room last event, and a new current room last event and returns a boolean. You can implement custom logic on whether or not the new event should replace the current event.

[wcjord]

@ggurdin is this a good thing for us to implement now?

[ggurdin]

Yes this would be good to implement now

[wcjord]

Ok please queue it up!

[wcjord]

@WilsonLe is this done? if not, potentially a good one for you.

[wcjord]

@WilsonLe What's going on with this ticket?

[ggurdin]

@wcjord this pull request: pangeachat/matrix-dart-sdk#10 needs to go through before the client one can be merged