Move where the developer options are shown and store them in the app settings.

ElementX/Sources/Application/AppSettings.swift

@@ -58,6 +58,7 @@ final class AppSettings {
         case enableOnlySignedDeviceIsolationMode
         case knockingEnabled
         case threadsEnabled
+        case developerOptionsEnabled
     }
     
     private static var suiteName: String = InfoPlistReader.main.appGroupIdentifier
@@ -328,6 +329,9 @@ final class AppSettings {
     @UserPreference(key: UserDefaultsKeys.threadsEnabled, defaultValue: false, storageType: .userDefaults(store))
     var threadsEnabled
     
+    @UserPreference(key: UserDefaultsKeys.threadsEnabled, defaultValue: isDevelopmentBuild, storageType: .userDefaults(store))
+    var developerOptionsEnabled
+    
     #endif
     
     // MARK: - Shared