More test resilience
More test resilience

Give the tests more than one chance for the roomview to load.

vector-im/riot-web,martindale/vector,vector-im/riot-web,martindale/vector,vector-im/vector-web,vector-im/vector-web,vector-im/vector-web,vector-im/riot-web,vector-im/vector-web,vector-im/riot-web,vector-im/riot-web,vector-im/vector-web,vector-im/riot-web