angular
fix(cdk/dialog): use inert to block content outside of dialog
Currently we're setting aria-hidden on all elements outside of a dialog in order to prevent assistive technology from interacting with it. These changes switch to using the inert attribute when supported which resolves some long-standing issues like tabbing directly into the dialog from the address bar.
Deployed dev-app to: https://ng-comp-dev--pr-25666-758588da5f5a0dae4da09ba558bf3e60-kk0pfpgo.web.app
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I spent some time presubmitting this and I think it'll be tricky to land, because the automated a11y checking tools don't account for inert yet. Previously the aria-hidden was also hiding some a11y issues, but with inert those issues are being reported.
