add quick and dirty user list for mods

views/mod/user-list.etlua

@@ -0,0 +1,8 @@
+<div class="darkbg settings-container">
+  <h1>All users</h1>
+  <ul>
+    <% for _, user in ipairs(users) do %>
+      <li><a href="<%= url_for("user", {username = user.username}) %>"><%= user.username %></a></li>
+    <% end %>
+  </ul>
+</div>