MESSENGER-4295 add additional information for maintenance

Config/BWIBuildSettings.swift

@@ -615,6 +615,7 @@ class BWIBuildSettings: NSObject {
     
     // MARK: - Maintenance
     var enableMaintenanceInfoOnWelcomeScreen = false
+    var showMaintenanceInfoMessageType = false
     
     // MARK: User Search
     var sortUserSearchResultsAlphabetically = true

Config/BuM-Beta/BWIBuildSettings+BuM-Beta.swift

@@ -37,6 +37,7 @@ extension BWIBuildSettings {
         enableLabFeatureVoiceBroadcasts = true
         enableNewSessionManagerByDefault = true
         enableLabFeatureWYSIWYG = true
+        showMaintenanceInfoMessageType = true
     }
     
 }