restore composer.json, add mysqli extension

public/vendor/dashboard/src/js/scripts/extensions/copy-to-clipboard.js

@@ -0,0 +1,18 @@
+/*=========================================================================================
+    File Name: copy-to-clipboard.js
+    Description: Copy to clipboard
+    --------------------------------------------------------------------------------------
+    Item Name: Vuesax HTML Admin Template
+    Version: 1.1
+    Author: PIXINVENT
+    Author URL: http://www.themeforest.net/user/pixinvent
+==========================================================================================*/
+
+var userText = $("#copy-to-clipboard-input");
+var btnCopy = $("#btn-copy");
+
+// copy text on click
+btnCopy.on("click", function () {
+  userText.select();
+  document.execCommand("copy");
+})