fix(JitsiConference): rename p2p failed event
fix(JitsiConference): rename p2p failed event

It should not be confused with the ICE state events added in
the previous commit.

jitsi/lib-jitsi-meet,adambowles/lib-jitsi-meet,nevermind-corp/ljm,adambowles/lib-jitsi-meet,jiyeyuran/lib-jitsi-meet,damencho/lib-jitsi-meet,jitsi/lib-jitsi-meet