Modal: Focus close button on open. Fallback to wrapping container div if no close button

https://design-system-react-co-pr-2004.herokuapp.com/?selectedKind=SLDSModal&selectedStory=Modal%20with%20Custom%20Parent%20Node&full=0&addons=1&stories=1&panelRight=0&addonPanel=storybook%2Factions%2Factions-panel

Issue: Screen readers read all lines of text as "clickable", sometimes reading multiple "clickable" before reading the content

Potential cause: Most likely a click handler is higher in the DOM (maybe the close button?) and everything inside this becomes clickable as well.

Possible solutions: Is it possible to wrap the click event in a clickable event that is not the parent for the other child elements that are reading as clickable? Please see this (older) WebAIM thread that has a long discussion of this type of issue for other potential solutions (https://webaim.org/discussion/mail_thread?thread=7693)

Start with the linked SLDSModal reproduction, especially the “Modal with Custom Parent Node” story, and inspect the Modal implementation and its focus behavior. Verify how screen readers announce the modal when it opens with and without a close button; done means focus reaches the close button when present and otherwise falls back to the wrapping container without child content being announced as clickable.