Decouple lower third from audience display mode so that it can be shown on top of other elements.

field/arena.go

@@ -68,6 +68,7 @@ type Arena struct {
 	AllianceStationDisplayMode string
 	AllianceSelectionAlliances [][]model.AllianceTeam
 	LowerThird                 *model.LowerThird
+	ShowLowerThird             bool
 	MuteMatchSounds            bool
 	matchAborted               bool
 	soundsPlayed               map[*game.MatchSound]struct{}

field/arena_notifiers.go

@@ -118,7 +118,10 @@ func (arena *Arena) generateDisplayConfigurationMessage() interface{} {
 }
 
 func (arena *Arena) generateLowerThirdMessage() interface{} {
-	return arena.LowerThird
+	return &struct {
+		LowerThird     *model.LowerThird
+		ShowLowerThird bool
+	}{arena.LowerThird, arena.ShowLowerThird}
 }
 
 func (arena *Arena) generateMatchLoadMessage() interface{} {