Set create task assignee default to Bao

public/app.js

@@ -6,6 +6,7 @@ const assignees = [
   { value: "luna", label: "Luna" },
   { value: "iris", label: "Iris" }
 ];
+const createTaskDefaultAssignee = "bao";
 
 const app = document.querySelector("#app");
 const state = {
@@ -226,7 +227,7 @@ function bindBoard() {
     form.elements.id.value = "";
     form.elements.state.value = "Backlog";
     form.elements.priority.value = "Medium";
-    form.elements.assignee.value = normalizeAssignee(state.settings?.defaultAssignee || "luna");
+    form.elements.assignee.value = createTaskDefaultAssignee;
     form.classList.add("task-form-create");
     dialogTitle.textContent = "Neue Aufgabe";
     dialogMeta.textContent = "Erstelle eine neue Aufgabe fuer das Mission-Control-Board.";