Christoph Settgast
1b200abaa7
fix(participants) do not preload gravatars if config is empty
Previously gravatars (external resources) were preloaded even if
disableThirdPartyRequests was set to true in the config, as the
config may be empty at the time of preloading.
Closes: #5670
Signed-off-by: Christoph Settgast <csett86@web.de>