added 404 page + prepared for production setup

templates/404.html

@@ -0,0 +1,13 @@
+{% extends "base.html" %}
+{% load static %}
+{% block title %}404 Not Found{% endblock %}
+{% block head %}
+    <link rel="stylesheet" href="{% static "error.css" %}">
+{% endblock %}
+{% block footer %}{% endblock %}
+{% block main %}
+    <div class="wrapper">
+        <h1 class="title">Page not found</h1>
+        <p class="desc">Oops, page <span class="url">{{ request.path }}</span> could not be found. Go back to <a href="{% url "dashboard" %}">Dashboard</a></p>
+    </div>
+{% endblock %}

templates/base.html

@@ -22,6 +22,7 @@
         {% block main %}{% endblock %}
     </main>
     <footer>
+        {% if debug %}<span class="debug">Debug</span>{% endif %}
         <span><i>Time Dispatcher v{{ version }}</i></span>
         <span class="sep"></span>
         <span><a href="https://git.kb28.ch/HEL/TimeDispatcher" target="_blank">Gitea</a></span>