refactor: organize sources by language directories

dart/manga/multisrc/madara/src/es/herenscan/herenscan.dart

@@ -0,0 +1,14 @@
+import '../../../../../../../model/source.dart';
+
+Source get herenscanSource => _herenscanSource;
+Source _herenscanSource = Source(
+  name: "HerenScan",
+  baseUrl: "https://herenscan.com",
+  lang: "es",
+  isNsfw: false,
+  typeSource: "madara",
+  iconUrl:
+      "https://raw.githubusercontent.com/kodjodevf/mangayomi-extensions/main/dart/manga/multisrc/madara/src/es/herenscan/icon.png",
+  dateFormat: "d 'de' MMM 'de' yyy",
+  dateFormatLocale: "es",
+);