Stabilize ActionMenu dialog VRT

[llastflowers]

Changelog

Changed

• Hide the dynamically mounted ActionMenu button label when capturing the Within Dialog VRT, avoiding a one-pixel Chromium text-positioning flake while preserving comparisons for the button, dialog, and menu.
• The Button text positioning will still be covered in other tests by Button snapshots, and other components that contain Buttons

Removed

None.

Rollout strategy

• Patch release
• Minor release
• Major release; if selected, include a written rollout or migration plan
• None; test-only change.

Testing & Reviewing

• Ran all 18 Dev: Within Dialog ActionMenu VRT variants locally.

[changeset-bot]

⚠️ No Changeset found

Latest commit: adb4d3d

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

This PR includes no changesets

When changesets are added to this PR, you'll see the packages that this PR includes changesets for and the associated semver types

Click here to learn what changesets are, and how to add one.

Click here if you're a maintainer who wants to add a changeset to this PR

[Copilot]

Copilot review overview

Review tier: Lite
Findings: None

What changed in this PR

This PR stabilizes the ActionMenu “Within Dialog” visual regression test by injecting a targeted CSS override during screenshot capture to hide a flaky, dynamically mounted button label, while keeping the rest of the UI (button/container/menu) comparable.

Changes:

• Adds a toHaveScreenshot style override for the Dev: Within Dialog VRT variant to hide [data-component="text"] inside ActionMenu.Button.
• Keeps all other ActionMenu VRT variants unchanged by leaving the style option unset for non-matching stories.

File	Description
e2e/​components/​ActionMenu.test.ts	Injects story-specific screenshot CSS to avoid a one-pixel text-positioning flake in the “Within Dialog” VRT.

---

💡 Add a code-review agent skill for context-aware, tailored reviews. Learn more in the docs.

[joshblack]

@llastflowers I have this one as well: #8332 hopefully these together will address some of the flakiness with VRT 😓

[joshblack]

Hope this works 🤞

[llastflowers]

@llastflowers I have this one as well: #8332 hopefully these together will address some of the flakiness with VRT 😓

Oh amazing, I hope so too!! 🤞