message: add dashes to htmlentities
diff: @@ -3268,7 +3268,7 @@ String WiFiManager::htmlEntities(String str) {
  str.replace("&","&amp;");
  str.replace("<","&lt;");
  str.replace(">","&gt;");
  - // str.replace("'","&#39;");
  + str.replace("-","&#8211;");
  // str.replace("\"","&quot;");
  // str.replace("/": "&#x2F;");
  // str.replace("`": "&#x60;");
  