allow mods to delete topics

js/topic.js

@@ -0,0 +1,16 @@
+{
+  const deleteDialog = document.getElementById("delete-dialog");
+  const deleteDialogOpenButton = document.getElementById("topic-delete-dialog-open");
+  deleteDialogOpenButton.addEventListener("click", (e) => {
+    deleteDialog.showModal();
+  });
+  const deleteDialogCloseButton = document.getElementById("topic-delete-dialog-close");
+  deleteDialogCloseButton.addEventListener("click", (e) => {
+    deleteDialog.close();
+  })
+  deleteDialog.addEventListener("click", (e) => {
+    if (e.target === deleteDialog) {
+      deleteDialog.close();
+    }
+  })
+}