add 'stay connected' checkbox

app/config/security.yml

@@ -51,6 +51,12 @@ security:
                 csrf_parameter:                 _csrf_token
                 intention:                      authenticate
 
+            remember_me:
+                key:      "%secret%"
+                lifetime: 31536000
+                path:     /
+                domain:   ~
+
             logout:
                 path:   /logout
                 target: /

src/Wallabag/CoreBundle/Resources/views/themes/material/Security/login.html.twig

@@ -33,6 +33,11 @@
                             <input type="password" id="password" name="_password" />
                         </div>
 
+                        <div class="input-field s12">
+                            <input type="checkbox" id="remember_me" name="_remember_me" checked />
+<label for="remember_me">Keep me logged in</label>
+                        </div>
+
                     </div>
                     <div class="card-action">
                         <button class="btn waves-effect waves-light" type="submit" name="send">