Started converting some of the backend over to Typescript, still trying to figure out a overall file strucure, in terms of adding the ability to have multiple backend fileserver options

backend/utils/NotFoundError.js

@@ -0,0 +1,10 @@
+class NotFoundError extends Error {
+    
+    constructor(args) {
+        super(args);
+
+        this.code = 404;
+    }
+}
+
+module.exports = NotFoundError;