✨(frontend) hide decorative icons, label menus, avoid name duplicates

improves a11y by hiding decorative icons, labeling menus and deduping names

Signed-off-by: Cyril <c.gromoff@gmail.com>

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

@@ -201,7 +201,7 @@ test.describe('Document create member', () => {
     await page.getByLabel('Reader').click();
 
     const moreActions = userInvitation.getByRole('button', {
-      name: 'more_horiz',
+      name: 'Open invitation actions menu',
     });
     await moreActions.click();