Notifications Enabled (#760)

* Notifications Enabled with default static text

notifications enabled with default static text

code improvement

added the share key

* added the changelog

* notification ID is added to the json only if it exists

* renamed Bundle.mainApp to app and updated the strings from localazy

* made a struct for the APNSPayload

* APNS Payload fix

ElementX/Sources/Generated/Strings+Untranslated.swift

@@ -71,6 +71,7 @@ public enum UntranslatedL10n {
 
 extension UntranslatedL10n {
   static func tr(_ table: String, _ key: String, _ args: CVarArg...) -> String {
+    // No need to check languages, we always default to en for untranslated strings
     guard let bundle = Bundle(for: BundleToken.self).lprojBundle(for: "en") else {
       // no translations for the desired language
       return key