Redirect from landing to dashboard if authenticated

app/routes.py

@@ -49,6 +49,8 @@ def logout():
 
 @main.route('/', methods=['GET'])
 def landing():
+    if current_user.is_authenticated:
+        return redirect(url_for('main.dashboard'))
     return render_template('landing.html')
 
 @main.route('/dashboard', methods=['GET', 'POST'])