fix: No notification when the avatar icon comes from a relative URL (#1662)
fix: No notification when the avatar icon comes from a relative URL (#1662)

* Attach absoluteUrl to avatarUrl

* Handle errors on loading notification avatars

Co-authored-by: Tasso Evangelista <01fba08e5fa809a708d4903864303023c55ab0d6@rocket.chat>
RocketChat/Rocket.Chat.Electron,RocketChat/Rocket.Chat.Electron,RocketChat/Rocket.Chat.Electron