remove unnecessary topmost ContentPane from main layout

tt-rss.css

@@ -1467,10 +1467,10 @@ div.fatalError textarea {
 	border-width : 0px;
 }
 
-#content-tabs .dijitTab {
+/* #content-tabs .dijitTab {
 	margin-top : 0px;
 	padding-top : 0px;
-}
+} */
 
 #toolbar {
 	padding : 0px;

tt-rss.php

@@ -110,8 +110,8 @@
 </div>
 
 <div dojoType="dijit.layout.BorderContainer" region="center" id="header-wrap" gutters="false">
-<div dojoType="dijit.layout.ContentPane" region="top">
-</div>
+<!-- <div dojoType="dijit.layout.ContentPane" region="top">
+</div> -->
 <div dojoType="dijit.layout.TabContainer" region="center" id="content-tabs">
 <div dojoType="dijit.layout.BorderContainer" region="center" id="content-wrap"
 	title="<?php echo __("News") ?>">