test(editor): Fix flaky e2e tests (#4779)

* test(editor): Fix default-owner and credentials saving e2e specs

* test(editor): fix webhook node test

* test(editor): add cy command for browser permissions

* test(editor): add cy command for reading clipboard

* Fix 3-default-owner spec

* Resolve review comments

* Merge spec

* Fix http node and expression editor modal specs

* Add optional param to credentials modal saving action to wait for the test endpoint

* Improve sidebar items clicking and increase credentials saving timeout

* Rename http e2e spec to fix ordering

* Fix pasting and copying of nodes e2e spec

* Make sure to only access error.cause if it exists

* Wait longer for the keyboard press

* Make sure to focus the body when typing

* Try type delay

* Use meta key based on the running platform

* Fix flaky workflowTagElements getter

Co-authored-by: Csaba Tuncsik <csaba@n8n.io>

packages/design-system/src/components/N8nMenuItem/MenuItem.vue

@@ -30,7 +30,7 @@
 					[$style.disableActiveStyle]: !isItemActive(child),
 					[$style.active]: isItemActive(child),
 				}"
-				:data-test-id="`menu-item-${child.id}`"
+				data-test-id="menu-item"
 				:index="child.id"
 				@click="onItemClick(child)"
 			>
@@ -54,7 +54,7 @@
 					[$style.active]: isItemActive(item),
 					[$style.compact]: compact,
 				}"
-				:data-test-id="`menu-item-${item.id}`"
+				data-test-id="menu-item"
 				:index="item.id"
 				@click="onItemClick(item)"
 			>