fix(dashboard): no stray "null" beside Learning in the add sheet

CHANGELOG.md

@@ -5,6 +5,9 @@ Conventional Commits by release-please.
 
 ## Unreleased
 
+- The dashboard's Add words sheet no longer shows a stray "null" beside "Learning" when you
+  read one language.
+
 ## [1.0.1](https://github.com/ScriptKittyOS/kotiko/compare/v1.0.0...v1.0.1) (2026-10-08)
 
 The first version in the stores. It fixes the package so the Chrome Web Store accepts it;

extension/bulk/sheet.js

@@ -351,7 +351,8 @@
         : null;
       controls.replaceChildren(
         el("span", { class: "bulk-control" }, el("span", { class: "field-label" }, t("bulk_learning")), learn),
-        meanings ? el("label", { class: "bulk-control" }, el("span", { class: "field-label" }, t("bulk_meanings_in")), meanings) : null,
+        // Only with more than one language read: replaceChildren would write a null as "null".
+        ...(meanings ? [el("label", { class: "bulk-control" }, el("span", { class: "field-label" }, t("bulk_meanings_in")), meanings)] : []),
       );
     }
 

test/dom/dashboard.test.mjs

@@ -1329,6 +1329,7 @@ describe("bulk add (slice 13)", () => {
   test("200 lines of 'native = meaning': all ready, saved in one batch with no lookup, then a summary with Undo", async () => {
     const d = await openDashboard({ hash: "#add", sync: EN });
     await learn(d, "Spanish");
+    assert.equal(d.text(".bulk-controls"), "LearningSpanish", "one language read: no meanings picker, and no stray text");
     const lines = Array.from({ length: 200 }, (_, i) => `palabra${i} = word${i}`).join("\n");
     await paste(d, lines);
     assert.equal(d.text(".bulk-counts").startsWith("200 words"), true);