Add footer template and include it in base and hero templates; update legal URL path

Signed-off-by: Edgar P. Burkhart <git@edgarpierre.fr>

base/templates/base.html

@@ -68,6 +68,9 @@
                 {% block content %}
                 {% endblock content %}
             </main>
+            <footer class="container">
+                {% include "footer.html" %}
+            </footer>
         {% endblock body %}
     </body>
 </html>

base/templates/footer.html

@@ -0,0 +1 @@
+© <a href="https://edgarpierre.fr">Edgar P. Burkhart</a> – <a href="{% url "legal" %}">Mentions légales</a>

base/templates/hero.html

@@ -1,10 +1,13 @@
 {% load static %}
 <div id="hero">
-    <div>
+    <main>
         <i class="ri-music-ai-fill big-logo"></i>
         <h1>Musik</h1>
         <p>
             <a href="{% url "login" %}" role="button"><i class="ri-play-fill"></i> Jouer</a>
         </p>
-    </div>
+    </main>
+    <footer>
+        {% include "footer.html" %}
+    </footer>
 </div>