fix: confirm deletes and restore recreated planning items

app/static/js/app.js

@@ -415,6 +415,17 @@ function mountThemeToggle() {
   });
 }
 
+function mountDeleteConfirmations() {
+  document.querySelectorAll("[data-confirm-submit]").forEach((node) => {
+    node.addEventListener("click", (event) => {
+      const message = node.dataset.confirmSubmit || "Wirklich löschen?";
+      if (!window.confirm(message)) {
+        event.preventDefault();
+      }
+    });
+  });
+}
+
 document.addEventListener("DOMContentLoaded", async () => {
   await registerServiceWorker();
   injectCsrfTokens();
@@ -423,6 +434,7 @@ document.addEventListener("DOMContentLoaded", async () => {
   mountDialogs();
   mountPersonalSplitSync();
   mountAnnualAmountSync();
+  mountDeleteConfirmations();
   document.querySelectorAll("[data-enable-push]").forEach((node) => {
     node.addEventListener("click", async (event) => {
       event.preventDefault();