More aggressive rageshake log culling
More aggressive rageshake log culling

Also bump the client-side timeout on the upload from 3 mins to 5 mins, to see
if it helps people on slower connections.

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