add : 404.html added.

Author: sadrasabouri

templates/404.html

@@ -0,0 +1,17 @@
+{% extends 'base.html' %}
+
+{% block title %}
+FekroBot::mafia::404
+{% endblock %}
+
+{% block avatar %}
+<img class="avatar" src="static/images/Warns/cross.png">
+{% endblock %}
+
+{% block role_title %}
+<h1>404</h1>
+<h2>Page Not Found!</h2>
+{% if is_farsi == True %}
+    <h2 id="fa">صفحه مورد نظر یافت نشد</h2>
+{% endif %}
+{% endblock %}