Fix various E2E tests for recent Gutenberg changes

[anomiex]

Proposed Changes

• Editor: Unify the preview dropdown between post and site editors WordPress/gutenberg#56921 changed the label of the preview button from "Preview" to "View".
• Editor: Unify device preview styles WordPress/gutenberg#56904 removed the setting of an is-xxx-preview class when using the in-page preview. Targeting the parent element (that has a static class) instead.
• E2E: Update editor-settings-sidebar-component selectors #86033 attempted to fix a test for another Gutenberg change, but the selector used there matches multiple elements in one of our tests and so causes it to fail. Adding [role="tab"] into the selector fixes that.

Testing Instructions

• Run tests, see if they pass now.

Pre-merge Checklist

• Has the general commit checklist been followed? (PCYsg-hS-p2)
• https://wpcalypso.wordpress.com/devdocs/docs/testing/index.md for your changes?
• Have you tested the feature in Simple (P9HQHe-k8-p2), Atomic (P9HQHe-jW-p2), and self-hosted Jetpack sites (PCYsg-g6b-p2)?
• Have you checked for TypeScript, React or other console errors?
• Have you used memoizing on expensive computations? More info in Memoizing with create-selector and Using memoizing selectors and Our Approach to Data
• Have we added the "[Status] String Freeze" label as soon as any new strings were ready for translation (p4TIVU-5Jq-p2)?
• For changes affecting Jetpack: Have we added the "[Status] Needs Privacy Updates" label if this pull request changes what data or activity we track or use (p4TIVU-ajp-p2)?

[github-actions]

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https://calypso.live?image=registry.a8c.com/calypso/app:build-93449

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https://calypso.live?image=registry.a8c.com/calypso/app:build-93449&env=jetpack

[matticbot]

This PR does not affect the size of JS and CSS bundles shipped to the user's browser.

Generated by performance advisor bot at iscalypsofastyet.com.