cypress: mobile: this test has an unexpected side-effect on other tests.

No idea why is that. Maybe cypress has an issue in it somewhere
or loolwsd is doing something. Adding a small wait avoid the
failure.

Change-Id: Ic1b29c34f9990fc4937105925872655a98793f79
Reviewed-on: https://gerrit.libreoffice.org/c/online/+/89372
Tested-by: Jenkins CollaboraOffice <jenkinscollaboraoffice@gmail.com>
Reviewed-by: Tamás Zolnai <tamas.zolnai@collabora.com>

cypress_test/integration_tests/mobile/writer/apply_font_spec.js

@@ -284,6 +284,7 @@ describe('Apply font changes.', function() {
 		// So better to hide it.
 		cy.get('#Spacing')
 			.should('not.exist');
+		cy.wait(2000);
 	});
 });