attempt to fix npm vulnerabilities (testcafe removed + overrides added)

[dmitry-kurmanov]

No description provided.

[Copilot]

Pull request overview

This PR aims to reduce reported npm vulnerabilities by removing legacy TestCafe-related visual regression helpers/dependencies and by pinning/transitively overriding vulnerable packages to safer versions across the repo’s packages.

Changes:

• Remove TestCafe/devextreme-screenshot-comparer helper utilities from visualRegressionTests/helper.ts.
• Bump selected dependencies (notably Playwright and Preact) to newer versions.
• Add/expand overrides in package manifests to force patched transitive dependency versions.

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
visualRegressionTests/helper.ts	Removes TestCafe/devextreme screenshot-comparer helpers, leaving shared exports and comparer options.
packages/survey-js-ui/package.json	Bumps preact to a newer version.
packages/survey-core/package.json	Updates @rollup/plugin-terser and adds an override for svgo.
packages/survey-angular-ui/package.json	Adds a set of overrides to pin transitive dependencies.
package.json	Updates Playwright versions, removes devextreme-screenshot-comparer, bumps get-func-name, and adds a minimatch override.

Comments suppressed due to low confidence (1)

visualRegressionTests/helper.ts:5

• screenshotComparerOptions is exported but no longer referenced anywhere in the repo (search shows only this definition). Since the TestCafe + devextreme screenshot comparer helpers were removed, consider removing this export as dead code, or add a short note explaining what still consumes it to avoid confusion for future maintainers.

export const screenshotComparerOptions = {
  path: "./tests",
  screenshotsRelativePath: "../../../visualRegressionTests/screenshots",
  destinationRelativePath: "../../../visualRegressionTests/artifacts",
  enableTextMask: true,

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