Refactoring addContextMenuToMarker.js and openInNewTab.js

utils/addContextMenuToMarker.js

@@ -0,0 +1,11 @@
+// /utils/addContextMenuToMarker.js
+
+export function addContextMenuToMarker(marker) {
+  marker.unbindContextMenu(); // Entferne das Kontextmenü, um Duplikate zu vermeiden
+
+  marker.bindContextMenu({
+    contextmenu: true,
+    contextmenuWidth: 140,
+    contextmenuItems: [],
+  });
+}