Update dependency typed.js to v2.1.0 (#1861)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

docs_theme/index.html

@@ -103,7 +103,7 @@ <h3>For work and play.</h3>
     <footer>
         jrnl is made with love by <a href="https://github.com/jrnl-org/jrnl/graphs/contributors" title="Contributors">many fabulous people</a>. If you need help, <a href="https://github.com/jrnl-org/jrnl/issues/new/choose" title="Open a new issue on Github">submit an issue</a> on Github.
     </footer>
-    <script src="//cdnjs.cloudflare.com/ajax/libs/typed.js/2.0.12/typed.min.js"></script>
+    <script src="//cdnjs.cloudflare.com/ajax/libs/typed.js/2.1.0/typed.min.js"></script>
     <script>
     new Typed("#typed", {
         strings: [