Sanitize data before displaying in markdown editor (#3205)

* Sanitize data before displaying in markdown editor

* Use the sanitize option provided by easymde

* Spelling fix

InvenTree/templates/js/translated/helpers.js

@@ -274,6 +274,11 @@ function setupNotesField(element, url, options={}) {
         initialValue: initial,
         toolbar: toolbar_icons,
         shortcuts: [],
+        renderingConfig: {
+            markedOptions: {
+                sanitize: true,
+            }
+        }
     });