feat: migrate to vue 3 (#2689)

---------

Co-authored-by: Joep <jcbuhre@gmail.com>
Co-authored-by: Omar Hussein <omarmohammad1951@gmail.com>
Co-authored-by: Oleg Lobanov <oleg@lobanov.me>

frontend/src/utils/cookie.ts

@@ -0,0 +1,6 @@
+export default function (name: string) {
+  const re = new RegExp(
+    "(?:(?:^|.*;\\s*)" + name + "\\s*\\=\\s*([^;]*).*$)|^.*$"
+  );
+  return document.cookie.replace(re, "$1");
+}