✅(e2e) fix e2e test for other browsers

In this test the comment is made using the "current" browser which can
be Chromium but can also be Firefox or Webkit.
This is why the test failed with other browsers.

Signed-off-by: Anto59290 <antonin59290@hotmail.com>

src/frontend/apps/e2e/__tests__/app-impress/doc-comments.spec.ts

@@ -58,7 +58,7 @@ test.describe('Doc Comments', () => {
     await page.getByRole('button', { name: '👍' }).click();
 
     await expect(
-      thread.getByRole('img', { name: 'E2E Chromium' }).first(),
+      thread.getByRole('img', { name: `E2E ${browserName}` }).first(),
     ).toBeVisible();
     await expect(thread.getByText('This is a comment').first()).toBeVisible();
     await expect(thread.getByText(`E2E ${browserName}`).first()).toBeVisible();