Fixes storing display name in local members list, avoids dominant speaker to delete it.
Fixes storing display name in local members list, avoids dominant speaker to delete it.

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