Use geo/address only if no containing links

app/src/main/java/eu/faircode/email/HtmlHelper.java

@@ -1103,6 +1103,7 @@ public class HtmlHelper {
         // Replace addresses by link
         // https://developer.mozilla.org/en-US/docs/Web/HTML/Element/address
         for (Element address : document.select("address"))
+            if (address.select("a").size() == 0)
                 address.tagName("a")
                         .attr("href", "geo:0,0?q=" + Uri.encode(address.text()));