Add initial setup and admin page

templates/account.html.tera

@@ -0,0 +1,15 @@
+{% extends "_layout" %}
+
+{% block content %}
+<form class="p-4 d-flex container-fluid" method="POST" action="/update_password">
+  <div>
+    <label for="pass" class="form-label">Update Password</label>
+  </div>
+  <div class="flex-grow-1 mx-4">
+    <input type="password" class="form-control" id="pass" name="password">
+  </div>
+  <div>
+    <button type="submit" class="btn btn-primary">Update Password</button>
+  </div>
+</form>
+{% endblock content %}