add decline account preferences toggle

app/views/accounts/show.html.erb

@@ -103,6 +103,18 @@
             </div>
           <% end %>
         <% end %>
+        <% account_config = AccountConfig.find_or_initialize_by(account: current_account, key: AccountConfig::ALLOW_TO_DECLINE_KEY) %>
+        <% if can?(:manage, account_config) %>
+          <%= form_for account_config, url: account_configs_path, method: :post do |f| %>
+            <%= f.hidden_field :key %>
+            <div class="flex items-center justify-between py-2.5">
+              <span>
+                <%= t('allow_to_decline_documents') %>
+              </span>
+              <%= f.check_box :value, class: 'toggle', checked: account_config.value != false, onchange: 'this.form.requestSubmit()' %>
+            </div>
+          <% end %>
+        <% end %>
         <% account_config = AccountConfig.find_or_initialize_by(account: current_account, key: AccountConfig::FORM_PREFILL_SIGNATURE_KEY) %>
         <% if can?(:manage, account_config) %>
           <%= form_for account_config, url: account_configs_path, method: :post do |f| %>

app/views/submit_form/show.html.erb

@@ -15,11 +15,13 @@
             <%= @submitter.submission.template.name %>
           </div>
           <div class="flex items-center space-x-2" style="margin-left: 20px; flex-shrink: 0">
-            <div>
-              <%= render 'shared/html_modal', title: t(:decline), btn_text: t(:decline), btn_class: 'btn btn-sm !px-5', button_id: 'decline_button' do %>
-                <%= render 'submit_form/decline_form', submitter: @submitter %>
-              <% end %>
-            </div>
+            <% if @form_configs[:with_decline] %>
+              <div>
+                <%= render 'shared/html_modal', title: t(:decline), btn_text: t(:decline), btn_class: 'btn btn-sm !px-5', button_id: 'decline_button' do %>
+                  <%= render 'submit_form/decline_form', submitter: @submitter %>
+                <% end %>
+              </div>
+            <% end %>
             <download-button data-src="<%= submit_form_download_index_path(@submitter.slug) %>" class="btn btn-neutral text-white btn-sm !px-4">
               <span class="flex items-center justify-center" data-target="download-button.defaultButton">
                 <%= svg_icon('download', class: 'w-6 h-6 inline md:hidden') %>