User admin-form as action for the nonce. Add it to the login form too

themes/grav/templates/partials/blueprints-new.html.twig

@@ -15,6 +15,6 @@
         <button class="button primary">{{ "PLUGIN_ADMIN.CONTINUE"|tu }}</button>
     </div>
 
-    {{ nonce_field('admin-post-blueprints', 'admin-nonce') }}
+    {{ nonce_field('admin-form', 'admin-nonce') }}
 
 </form>

themes/grav/templates/partials/blueprints-raw.html.twig

@@ -11,6 +11,6 @@
         {% endif %}
     {% endfor %}
 
-    {{ nonce_field('admin-post-blueprints', 'admin-nonce') }}
+    {{ nonce_field('admin-form', 'admin-nonce') }}
 
 </form>

themes/grav/templates/partials/blueprints.html.twig

@@ -19,5 +19,5 @@
     {% endfor %}
     {% endif %}
 
-    {{ nonce_field('admin-post-blueprints', 'admin-nonce') }}
+    {{ nonce_field('admin-form', 'admin-nonce') }}
 </form>

themes/grav/templates/partials/login.html.twig

@@ -10,6 +10,8 @@
 
         <form method="post" action="{{ base_url_relative }}">
             {% block form %}{% endblock %}
+
+            {{ nonce_field('admin-form', 'admin-nonce') }}
         </form>
     </section>
 {% endblock %}