🛂(frontend) right pad editor

Manage the right on the pad editor.
If a use cannot edit a pad, the pad editor will
be read-only. It will not save automatically.
A message will be displayed to the user.

src/frontend/apps/e2e/__tests__/app-impress/pad-editor.spec.ts

@@ -168,4 +168,33 @@ test.describe('Pad Editor', () => {
 
     await expect(page.getByText('Hello World Pad persisted 2')).toBeVisible();
   });
+
+  test('it cannot edit if not the owner', async ({ page, browserName }) => {
+    const [padName] = await createPad(
+      page,
+      'pad-right-edit',
+      browserName,
+      1,
+      true,
+    );
+
+    await page.getByText('My account').click();
+    await page.getByText('Logout').first().click();
+
+    await page.getByLabel('Restart login').click();
+
+    const browserNames = ['chromium', 'webkit'];
+    const newBrowserName = browserNames.find((name) => name !== browserName)!;
+
+    await keyCloakSignIn(page, newBrowserName);
+
+    const panel = page.getByLabel('Pads panel').first();
+    await panel.getByText(padName).click();
+
+    await expect(
+      page.getByText(
+        "Read only, you don't have the right to update this document.",
+      ),
+    ).toBeVisible();
+  });
 });