chore: Adjust mocha assertions (#30052)

apps/meteor/.eslintignore

apps/meteor/package.json

apps/meteor/tests/.eslintrc.json

apps/meteor/tests/data/uploads.helper.ts

apps/meteor/tests/e2e/.eslintrc.json

apps/meteor/tests/e2e/avatar-settings.ts

apps/meteor/tests/e2e/e2e-encryption.spec.ts

apps/meteor/tests/e2e/federation/config/global-setup.ts

...sts/e2e/federation/page-objects/fragments/home-sidenav.ts

apps/meteor/tests/e2e/federation/tests/admin/users.spec.ts

apps/meteor/tests/e2e/federation/tests/messaging/dm.spec.ts

...teor/tests/e2e/federation/tests/messaging/private.spec.ts

apps/meteor/tests/e2e/fixtures/collections/users.ts

apps/meteor/tests/e2e/fixtures/inject-initial-data.ts

apps/meteor/tests/e2e/fixtures/userStates.ts

apps/meteor/tests/e2e/threads.spec.ts

apps/meteor/tests/end-to-end/api/00-autotranslate.js

apps/meteor/tests/end-to-end/api/00-miscellaneous.js

apps/meteor/tests/end-to-end/api/01-users.js

apps/meteor/tests/end-to-end/api/02-channels.js