fixed issues related to message displaying in settings

templates/settings/Admin.php

@@ -4,7 +4,7 @@ style("ncdownloader", "settings");
 extract($_);
 ?>
 <div class="ncdownloader-admin-settings">
-<div id="ncdownloader-message-banner"></div>
+<div id="ncdownloader-message-banner" style="display: none;"></div>
     <form id="ncdownloader" class="section">
         <h2>NCDownloader admin Settings</h2>
         <div id="ncd_rpctoken_settings" path="<?php print $path;?>">

templates/settings/Personal.php

@@ -6,7 +6,7 @@ extract($_);
 $time_map = array('i' => 'minutes', 'h' => 'hours', 'w' => 'weeks', 'd' => 'days', 'y' => 'years');
 ?>
 <div class="ncdownloader-personal-settings">
-    <div id="ncdownloader-message-banner"></div>
+    <div id="ncdownloader-message-banner" style="display: none;"></div>
     <div id="ncdownloader-settings-form" class="section">
         <div class="ncdownloader-general-settings">
             <h2 class="title">