Add All Package Tags to todo tabs

app/templates/todo/tags.html

@@ -1,11 +1,10 @@
-{% extends "base.html" %}
+{% extends "todo/todo_base.html" %}
 
 {% block title %}
-	Tags
+	{{ _("All Package Tags") }}
 {% endblock %}
 
 {% block content %}
-
 <table class="table">
 	<tr>
 		<th>Package</th>

app/templates/todo/todo_base.html

@@ -23,6 +23,12 @@
 							{{ _("All Outdated Packages") }}
 						</a>
 					</li>
+					<li class="nav-item">
+						<a class="nav-link {% if current_tab == "tags" %}active{% endif %}"
+								href="{{ url_for('todo.tags') }}">
+							{{ _("All Package Tags") }}
+						</a>
+					</li>
 					<li class="nav-item">
 						<a class="nav-link {% if current_tab == "topics" %}active{% endif %}"
 								href="{{ url_for('todo.topics') }}">