Change train route to /admin/train and update navbar link

templates/base.html

@@ -74,7 +74,7 @@
                 <a href="/dashboard" {% if active_page == 'dashboard' %}class="active"{% endif %}>Dashboard</a>
                 <a href="/analyze" {% if active_page == 'analyze' %}class="active"{% endif %}>Analyze</a>
                 {% if user.get('role') == 'admin' %}
-                <a href="/train" {% if active_page == 'train' %}class="active"{% endif %}>Train</a>
+                <a href="/admin/train" {% if active_page == 'train' %}class="active"{% endif %}>Train</a>
                 {% endif %}
                 <a href="/history" {% if active_page == 'history' %}class="active"{% endif %}>History</a>
                 {% if user.get('role') == 'admin' %}

vidai/web.py

@@ -289,7 +289,7 @@ def analyze():
                            server_dir=server_dir,
                            active_page='analyze')
 
-@app.route('/train', methods=['GET', 'POST'])
+@app.route('/admin/train', methods=['GET', 'POST'])
 @admin_required
 def train():
     user = get_current_user_session()