Revert ACP template event and fix error message in acp_users

The other event was better. And with <hr /> it looks really nice :)

Author: Elsensee

adm/style/event/acp_users_prefs_append.html adm/style/event/acp_users_prefs_view_append.html

@@ -1,10 +1,9 @@
 <!-- IF .ppp_setting -->
-<fieldset>
+<hr />
 <!-- BEGIN ppp_setting -->
 <dl>
 	<dt><label for="{ppp_setting.KEY}">{ppp_setting.TITLE}{L_COLON}</label><!-- IF ppp_setting.EXPLAIN --><br /><span>{ppp_setting.EXPLAIN}</span><!-- ENDIF --></dt>
 	<dd><input id="{ppp_setting.KEY}" type="number" maxlength="{ppp_setting.MAX_LENGTH}" min="{ppp_setting.MIN}" max="{ppp_setting.MAX}" name="{ppp_setting.KEY}" value="{ppp_setting.VALUE}" /></dd>
 </dl>
 <!-- END ppp_setting -->
-</fieldset>
 <!-- ENDIF -->

event/listener.php

@@ -358,6 +358,8 @@ public function update_config_in_acp_users($event)
 			return;
 		}
 
+		$this->user->add_lang_ext('elsensee/postsperpage', 'common');
+
 		$data = array();
 		$error = $this->validate_request_vars($data, $event['user_row'], true);
 		if (sizeof($error))