fix(notifications): a notice keeps what to say and says it in the reader's language when shown

frontend/src/features/wizard/OnboardingWizard.dialog.dom.test.tsx

@@ -23,7 +23,7 @@ vi.mock("../../lib/onboarding", () => ({ beginGrant: vi.fn(), endOnboarding: vi.
 
 import OnboardingWizard from "./OnboardingWizard";
 import { api, type Me } from "../../lib/api";
-import { clearAll, notify } from "../../lib/notifications";
+import { clearAll, notify, raw } from "../../lib/notifications";
 
 const me = { id: 1, email: "a@b", can_read: false, can_write: false } as unknown as Me;
 
@@ -110,7 +110,7 @@ describe("the onboarding wizard as a dialog", () => {
     document.body.appendChild(outside);
     outside.focus();
     const { unmount } = mount();
-    act(() => void notify({ level: "error", message: "offline" }));
+    act(() => void notify({ level: "error", message: raw("offline") }));
     const dismissToast = screen.getByTitle("notifications.dismiss");
     dismissToast.focus();
     expect(document.activeElement).toBe(dismissToast);
@@ -126,7 +126,7 @@ describe("the onboarding wizard as a dialog", () => {
     // unreachable from the keyboard. `ui/Modal` spans the whole dialog for exactly this reason.
     mount();
     const panel = screen.getByRole("dialog");
-    act(() => void notify({ level: "error", message: "offline" }));
+    act(() => void notify({ level: "error", message: raw("offline") }));
     try {
       const dismissToast = screen.getByTitle("notifications.dismiss");
       expect(panel.contains(dismissToast)).toBe(false);