Update AppLifecycleHelper.cs

Author: yaira2

src/Files.App/Helpers/Application/AppLifecycleHelper.cs

@@ -29,7 +29,12 @@ public static class AppLifecycleHelper
 		/// <summary>
 		/// Gets the value that provides application environment or branch name.
 		/// </summary>
-		public static AppEnvironment AppEnvironment { get; } = AppEnvironment.Dev;
+		public static AppEnvironment AppEnvironment { get; } =
+#if DEBUG
+		AppEnvironment.Dev;
+#else
+		"cd_app_env_placeholder";
+#endif
 
 		/// <summary>
 		/// Gets application package version.