Hi j2html Team.

Overall I'm very excited from the library, thank you much!
Together with this I detected some behaviour which looks like a bug, some unicode characters are not (html) escaped:
Here the simple test:

  @Test
   @DisplayName("test escaping")
   void testEscaping() {
       String spacers = "\u00a0\u200c";
       assertEquals(" ‌",StringEscapeUtils.escapeHtml4(spacers));
       assertEquals(" ‌", TagCreator.text(spacers).render());
   }

The first assertion passes, because StringEscapeUtils of apache-commons does the job,
but the second assertion fails because the text left intact.
Using the last 1.6.0 version of the library.

Please advice!