Fixed tiny issues in search history UI

res/search.css

@@ -424,6 +424,17 @@ nav input[type=text]:focus + #searchicon {
     white-space: nowrap;
 }
 
+#autocomplete p {
+    cursor: default;
+    line-height: 36px;
+    overflow: hidden;
+    padding: 0 24px;
+    text-overflow: ellipsis;
+    white-space: nowrap;
+    font-style: italic;
+    color: #646464;
+}
+
 #autocomplete li .icon {
     border-radius: 12px;
     height: 24px;

res/search.js

@@ -215,6 +215,9 @@ var update_history = function () {
         container.append(render_history_item(i, history[i]));
         attach_history_item($("#history"+i));
     }
+    if (history.length == 0) {
+        container.append("<p>No search history available</p>");
+    }
 };
 
 var attach_history_item = function (elem) {