test(core): update e2e test for toolbar in PTE to be more reliable

[RitaDias]

Description

This test was a bit flaky now it should be a bit more sturdy where it checks that the portal has some children (with each opened full screen in PTE more children are added and so are checked).

What to review

That it makes sense, maybe there is a better approach to this?

Notes for release

Improves the sturdiness of e2e tests for Portable Text Editor

[vercel]

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Name	Status	Preview	Comments	Updated (UTC)
page-building-studio	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	May 30, 2024 2:01pm
performance-studio	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	May 30, 2024 2:01pm
test-compiled-studio	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	May 30, 2024 2:01pm
test-next-studio	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	May 30, 2024 2:01pm
test-studio	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	May 30, 2024 2:01pm

1 Ignored Deployment

Name	Status	Preview	Comments	Updated (UTC)
studio-workshop	⬜️ Ignored (Inspect)			May 30, 2024 2:01pm

[github-actions]

No changes to documentation

[github-actions]

Component Testing Report Updated May 30, 2024 2:09 PM (UTC)

File	Status	Duration	Passed	Skipped	Failed
comments/CommentInput.spec.tsx	✅ Passed (Inspect)	36s	15	0	0
formBuilder/ArrayInput.spec.tsx	✅ Passed (Inspect)	6s	3	0	0
formBuilder/inputs/PortableText/Annotations.spec.tsx	✅ Passed (Inspect)	25s	6	0	0
formBuilder/inputs/PortableText/copyPaste/CopyPaste.spec.tsx	✅ Passed (Inspect)	31s	11	7	0
formBuilder/inputs/PortableText/Decorators.spec.tsx	✅ Passed (Inspect)	14s	6	0	0
formBuilder/inputs/PortableText/DisableFocusAndUnset.spec.tsx	✅ Passed (Inspect)	8s	3	0	0
formBuilder/inputs/PortableText/FocusTracking.spec.tsx	✅ Passed (Inspect)	36s	15	0	0
formBuilder/inputs/PortableText/Input.spec.tsx	✅ Passed (Inspect)	1m 17s	21	0	0
formBuilder/inputs/PortableText/ObjectBlock.spec.tsx	✅ Passed (Inspect)	1m 3s	18	0	0
formBuilder/inputs/PortableText/PresenceCursors.spec.tsx	✅ Passed (Inspect)	7s	3	9	0
formBuilder/inputs/PortableText/RangeDecoration.spec.tsx	✅ Passed (Inspect)	21s	9	0	0
formBuilder/inputs/PortableText/Styles.spec.tsx	✅ Passed (Inspect)	15s	6	0	0
formBuilder/inputs/PortableText/Toolbar.spec.tsx	✅ Passed (Inspect)	29s	12	0	0

[ricokahler]

doing god's work