add search bar to all browsing menus

templates/indexhead.html

@@ -10,5 +10,12 @@
 	<div id="content">
 	<h1>$title$</h1>
 	$extra_content$
-	<ul class="buttonlist">
+	<div id="searchWrapper">
+	<input id="search" placeholder="search" autocomplete="off" autofocus>
+	</div>
+	<p class="searchSmallText" style="margin-top: 0; text-align: center">
+		Press (<kbd>Shift</kbd>+)<kbd>Enter</kbd> to open first result (in new tab)
+	</p>
+
+	<ul id="searchResults" class="buttonlist">
 		<li class="article"><a href=".."><p>../</p></a></li>