Add support for fading out on sleep timer end

Playback will start to fadeout during last 60 seconds of the sleep timer. Once faded out, playback will be paused, volume reset, and playback seeked to start of fadeout.

ios/App/App/AppDelegate.swift

@@ -14,7 +14,7 @@ class AppDelegate: UIResponder, UIApplicationDelegate {
         // Override point for customization after application launch.
 
         let configuration = Realm.Configuration(
-            schemaVersion: 18,
+            schemaVersion: 19,
             migrationBlock: { [weak self] migration, oldSchemaVersion in
                 if (oldSchemaVersion < 1) {
                     self?.logger.log("Realm schema version was \(oldSchemaVersion)")
@@ -61,6 +61,12 @@ class AppDelegate: UIResponder, UIApplicationDelegate {
                         newObject?["streamingUsingCellular"] = "ALWAYS"
                     }
                 }
+                if (oldSchemaVersion < 18) {
+                    self?.logger.log("Realm schema version was \(oldSchemaVersion)... Adding disableSleepTimerFadeOut settings")
+                    migration.enumerateObjects(ofType: PlayerSettings.className()) { oldObject, newObject in
+                        newObject?["disableSleepTimerFadeOut"] = false
+                  }
+              }
 
             }
         )

ios/App/App/plugins/AbsDatabase.swift

@@ -246,6 +246,7 @@ public class AbsDatabase: CAPPlugin {
         let languageCode = call.getString("languageCode") ?? "en-us"
         let downloadUsingCellular = call.getString("downloadUsingCellular") ?? "ALWAYS"
         let streamingUsingCellular = call.getString("streamingUsingCellular") ?? "ALWAYS"
+        let disableSleepTimerFadeOut = call.getBool("disableSleepTimerFadeOut") ?? false
         let settings = DeviceSettings()
         settings.disableAutoRewind = disableAutoRewind
         settings.enableAltView = enableAltView
@@ -257,6 +258,7 @@ public class AbsDatabase: CAPPlugin {
         settings.languageCode = languageCode
         settings.downloadUsingCellular = downloadUsingCellular
         settings.streamingUsingCellular = streamingUsingCellular
+        settings.disableSleepTimerFadeOut = disableSleepTimerFadeOut
 
         Database.shared.setDeviceSettings(deviceSettings: settings)