Remove dialog-toggle-events polyfill

[jibrang]

The purpose of this PR is to remove the dialog-toggle-events-polyfill from the package. This code change is necessary because the polyfill is disrupting the browser error reporting in old versions of Firefox.
I will test this code change in review-lab before attempting the upgrade in Dotcom.

I verified the dialog-toggle-events polyfill is not used in any other place in the browser-support package and Doctom:

• Comparing changes from the current browser-support version in Dotcom to the latest one
• browser-support code search
• Dotcom code search

[Copilot]

Pull Request Overview

This PR removes the dialog-toggle-events polyfill to resolve browser error reporting issues in an older version of Firefox.

• Removed import of dialog-toggle-events
• Adjusted the polyfills object and simplified the isSupported() function to return only baseSupport

Files not reviewed (1)

• package.json: Language not supported

Comments suppressed due to low confidence (1)

src/index.ts:59

• [nitpick] The isSupported() function now only checks baseSupport after removing the dialog-toggle-events polyfill. Please confirm that this simplification is intended and that support checks for the remaining polyfills can be safely omitted.

return baseSupport

[dgreif]

Thanks for removing this for now. We probably need to cut a major release since this is technically a breaking change