[client/ui] Refresh profile list on CLI profile select

SwitchProfile now publishes the same profile-list-changed event that
AddProfile/RemoveProfile already emit. The daemon emits no dedicated
profile RPC event, and the React ProfileContext only refreshes on
EventProfileChanged (unlike the tray, which also re-fetches on every
status-string transition via loadProfiles). So a CLI-driven
"netbird down; profile select X; netbird up" refreshed the tray (the
down/up status flips trigger loadProfiles) but left the React profile
dropdown stale, since the select path never surfaced an event.

Publishing the marked INFO/SYSTEM event from SwitchProfile closes that
gap: dispatchSystemEvent re-emits EventProfileChanged, which
ProfileContext.refresh already subscribes to. No proto change.

client/server/server.go

@@ -959,6 +959,10 @@ func (s *Server) SwitchProfile(callerCtx context.Context, msg *proto.SwitchProfi
 
 	s.config = config
 
+	if msg != nil && msg.ProfileName != nil {
+		s.publishProfileListChanged(*msg.ProfileName)
+	}
+
 	return &proto.SwitchProfileResponse{}, nil
 }