fix: 设置页目录框始终展开

- 移除目录框折叠按钮
- 删除 folded 类相关样式
- 调整内边距适配新布局

settings.php

@@ -5635,8 +5635,6 @@ window.pjaxLoaded = function(){
 
 	<div id="headindex_box">
 
-		<button id="headindex_toggler" onclick="$('#headindex_box').toggleClass('folded');"><?php _e('收起', 'argon');?></button>
-
 		<div id="headindex"></div>
 
 	</div>
@@ -5705,7 +5703,7 @@ window.pjaxLoaded = function(){
 
 			box-shadow: 0 1px 1px rgba(0,0,0,.04);
 
-			padding: 6px 30px 6px 20px;
+			padding: 6px 20px;
 
 			overflow-y: auto;
 
@@ -5747,62 +5745,6 @@ window.pjaxLoaded = function(){
 
 		}
 
-		#headindex_toggler{
-
-			position: absolute;
-
-			right: 5px;
-
-			top: 5px;
-
-			color: #555;
-
-			background: #f7f7f7;
-
-			box-shadow: 0 1px 0 #ccc;
-
-			outline: none !important;
-
-			border: 1px solid #ccc;
-
-			border-radius: 2px;
-
-			cursor: pointer;
-
-			width: 40px;
-
-			height: 25px;
-
-			font-size: 12px;
-
-		}
-
-		#headindex_box.folded {
-
-			right: -185px;
-
-		}
-
-		#headindex_box.folded #headindex_toggler{
-
-			position: fixed;
-
-			right: 15px;
-
-			top: 55px;
-
-			font-size: 0px;
-
-		}
-
-		#headindex_box.folded #headindex_toggler:before{
-
-			content: '<?php _e('展开', 'argon');?>';
-
-			font-size: 12px;
-
-		}
-
 		@media screen and (max-width:960px){
 
 			#headindex_box {