Update admin interface (#4737)

- Updated datatables
- Set Cookie Secure flag if the connection is https
- Prevent possible XSS via Organization Name
  Converted all `innerHTML` and `innerText` to the Safe Sink version `textContent`
- Removed `jsesc` function as handlebars escapes all these chars already and more by default

src/static/scripts/admin_settings.js

@@ -122,7 +122,7 @@ function submitTestEmailOnEnter() {
 function colorRiskSettings() {
     const risk_items = document.getElementsByClassName("col-form-label");
     Array.from(risk_items).forEach((el) => {
-        if (el.innerText.toLowerCase().includes("risks") ) {
+        if (el.textContent.toLowerCase().includes("risks") ) {
             el.parentElement.className += " alert-danger";
         }
     });