feat(exports): turbo poll for pending exports

app/components/dossiers/export_link_component/export_link_component.html.haml

@@ -1,4 +1,4 @@
-%ul.fr-raw-list
+%ul#exports-list.fr-raw-list
   - @exports.each do |export|
     %li.fr-mb-3w
       .flex

app/controllers/instructeurs/procedures_controller.rb

@@ -231,6 +231,11 @@ module Instructeurs
         value: DateTime.current,
         expires: Export::MAX_DUREE_GENERATION + Export::MAX_DUREE_CONSERVATION_EXPORT
       }
+
+      respond_to do |format|
+        format.turbo_stream
+        format.html
+      end
     end
 
     def email_usagers

app/views/instructeurs/procedures/exports.html.haml

@@ -10,7 +10,9 @@
   = render Dsfr::CalloutComponent.new(title: nil) do |c|
     - c.with_body do
       %p= t('.export_description')
+
   - if @exports.present?
+    %div{ data: @exports.any?(&:pending?) ? { controller: "turbo-poll", turbo_poll_url_value: "", turbo_poll_interval_value: 10_000, turbo_poll_max_checks_value: 6 } : {} }
       = render Dossiers::ExportLinkComponent.new(procedure: @procedure, exports: @exports, statut: @statut, count: @dossiers_count, class_btn: 'fr-btn--tertiary', export_url: method(:download_export_instructeur_procedure_path))
 
   - else

app/views/instructeurs/procedures/exports.turbo_stream.haml

@@ -0,0 +1,3 @@
+= turbo_stream.replace "exports-list" do
+  - if @exports.present?
+    = render Dossiers::ExportLinkComponent.new(procedure: @procedure, exports: @exports, statut: @statut, count: @dossiers_count, class_btn: 'fr-btn--tertiary', export_url: method(:download_export_instructeur_procedure_path))