Polish the list template

templates/list.tmpl.html

@@ -1,10 +1,12 @@
 {{define "title"}}All Notes{{end}}
 {{define "main"}}
-<ul>
+    <div class="list-group list-group-flush">
     {{range $title := .titles}}
-    <li>
-        <a href="{{$title}}/">{{$title}}</a>
-    </li>
+        <a class="list-group-item list-group-item-action d-flex justify-content-between"
+           href="{{$title}}/">
+            <span>{{$title}}</span>
+            <img src="/static/icons/pencil-square.svg" alt="Edit">
+        </a>
     {{end}}
-</ul>
+</div>
 {{end}}