wip renaming plugins elements

plugins/fipfcard_plugin/js/menu/example_menu.js

@@ -0,0 +1,7 @@
+const inputElement = document.getElementById('mytext');
+const sendButton = document.getElementById('mybutton');
+
+sendButton.addEventListener('click', () => {
+	const inputValue = inputElement.value;
+	ajax_post(inputValue, 'get_data');
+});