Combine frontend navigation tests into fewer tests to speed up e2e tests (#50681)

There is quite a bit of setup needed for each of the frontend navigation tests, and by combining them into fewer tests we can speed them up and follow the best practices of write fewer but longer tests: https://playwright.dev/docs/best-practices#write-fewer-tests-but-longer-tests

* Simplify setup logic for creating navigation menu for frontend interaction tests

* Combine submenu interaction tests into one test

* Rename parent test to make it more clearly different from child test

* Combine overlay menu interactions into one test

Author: jeryj

test/e2e/artifacts/storage-states/admin.json

@@ -0,0 +1 @@
+{"cookies":[{"name":"wordpress_test_cookie","value":"WP%20Cookie%20check","domain":"localhost","path":"/","expires":-1,"httpOnly":false,"secure":false,"sameSite":"Lax"},{"name":"wordpress_23778236db82f19306f247e20a353a99","value":"admin%7C1684446357%7Cdx01QADx42SHH9s4ikPkhkS07FzxnWES5FY2SsnwL7v%7C45404d74460259bc9148f2357f2180af488d65921b10ed5981fff860afa5c8ca","domain":"localhost","path":"/wp-content/plugins","expires":-1,"httpOnly":true,"secure":false,"sameSite":"Lax"},{"name":"wordpress_23778236db82f19306f247e20a353a99","value":"admin%7C1684446357%7Cdx01QADx42SHH9s4ikPkhkS07FzxnWES5FY2SsnwL7v%7C45404d74460259bc9148f2357f2180af488d65921b10ed5981fff860afa5c8ca","domain":"localhost","path":"/wp-admin","expires":-1,"httpOnly":true,"secure":false,"sameSite":"Lax"},{"name":"wordpress_logged_in_23778236db82f19306f247e20a353a99","value":"admin%7C1684446357%7Cdx01QADx42SHH9s4ikPkhkS07FzxnWES5FY2SsnwL7v%7C8ace4a8f867bc4e587d5264662296f90fcd133710cd0dd3386a92801816bd5d1","domain":"localhost","path":"/","expires":-1,"httpOnly":true,"secure":false,"sameSite":"Lax"},{"name":"wp-settings-1","value":"editor%3Dtinymce","domain":"localhost","path":"/","expires":1715809558.14,"httpOnly":false,"secure":false,"sameSite":"Lax"},{"name":"wp-settings-time-1","value":"1684273558","domain":"localhost","path":"/","expires":1715809558.14,"httpOnly":false,"secure":false,"sameSite":"Lax"}],"nonce":"fe590a7aae","rootURL":"http://localhost:8889/index.php?rest_route=/"}