feat(i18n): localise document editing controls

job-tracker-ui/src/application-assets.test.tsx

@@ -66,7 +66,12 @@ function routeGet(overrides: Record<string, any> = {}) {
   });
 }
 
-beforeEach(() => jest.clearAllMocks());
+beforeEach(() => {
+  window.localStorage.removeItem("uiLanguage");
+  jest.clearAllMocks();
+});
+
+afterEach(() => window.localStorage.removeItem("uiLanguage"));
 
 // ---------- CV ----------
 
@@ -185,6 +190,19 @@ test("an empty cover letter offers the template and an empty history", async ()
     .toContain("Dear Hiring Manager");
 });
 
+test("the empty cover-letter template and rich-text controls follow Bokmål UI language", async () => {
+  window.localStorage.setItem("uiLanguage", "nb");
+  routeGet({ coverLetter: { text: null, currentVersion: 0, versions: [], aiSuggestionCount: 0 } });
+
+  render(<ApplicationCoverLetterSection jobId={7} />);
+
+  fireEvent.click(await screen.findByRole("button", { name: /start fra mal/i }));
+  expect((screen.getByLabelText("Søknadsbrev") as HTMLTextAreaElement).value)
+    .toContain("Kjære rekrutteringsansvarlig");
+  expect(screen.getByRole("button", { name: "Fet" })).toBeInTheDocument();
+  expect(screen.getByRole("button", { name: "Lenke" })).toBeInTheDocument();
+});
+
 test("AI cover letter suggestions use the linked CV and require explicit apply", async () => {
   routeGet();
   mockedApi.post.mockResolvedValue({