fix: the AcoustID and Library tests expect the new copy and one folder per line (M503 #5607)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

web/src/lib/components/AcoustIDCard.test.ts

@@ -63,7 +63,7 @@ describe("AcoustIDCard", () => {
     await renderCard();
     const key = screen.getByLabelText(/api key/i) as HTMLInputElement;
     expect(key.value).toBe("");
-    expect(key.placeholder).toBe("Stored");
+    expect(key.placeholder).toBe("Key saved");
     expect(saveButton()).toHaveProperty("disabled", true);
 
     await fireEvent.input(

web/src/routes/admin/library/library.test.ts

@@ -59,7 +59,8 @@ const squash = (el: Element) => el.textContent?.replace(/\s+/g, ' ').trim();
 describe('Admin › Library', () => {
   test('lists the folders Minstrel reads', () => {
     setup();
-    expect(squash(screen.getByTestId('library-folders'))).toBe('/music /more-music');
+    const folders = [...screen.getByTestId('library-folders').children].map((el) => el.textContent);
+    expect(folders).toEqual(['/music', '/more-music']);
   });
 
   test('before any scan it says so, with no job rows', () => {