basic progress toasts

ref #62

src/components/orgs/OrgDetail.svelte

@@ -122,6 +122,10 @@
           on:click={async () => {
             const locale = getLocaleFromNavigator();
             const runners = await RunnerOrganizationService.runnerOrganizationControllerGetRunners(original_object.id);
+            const toast = Toastify({
+              text: $_('generating-pdf'),
+              duration: -1,
+            }).showToast();
             fetch(
               `https://dev.lauf-fuer-kaya.de/documents/contracts?locale=${locale}&download=true&key=${config.documentserver_key}`,
               {
@@ -141,6 +145,13 @@
                 document.body.appendChild(a);
                 a.click();
                 a.remove();
+                toast.hideToast();
+                Toastify({
+                  text: $_('pdf-successfully-generated'),
+                  duration: 3500,
+                  backgroundColor:
+                    'linear-gradient(to right, #00b09b, #96c93d)',
+                }).showToast();
               })
               .catch((err) => {});
           }}