fix form url not found

Author: ignaciosy

app/views/components/flatpickr/_themes.html.erb

@@ -1,5 +1,5 @@
 <div class="mt-3 col-md-6">
-  <%= form_for :appointment do |form| %>
+  <%= form_for :appointment, url: '#', method: 'get' do |form| %>
     <div class="my-3">
       <p class="my-1">Default HTML date input</p>
       <%= form.date_field :normal_date %>