deployment change popover unclickable when sheet open

[shreddedbacon]

When the deployment changes popover is open, the close button is unclickable when a sheet is opened.

Closing the sheet allows the popover to be closed

[CGoodwin90]

Yeah, this is shads core Sheet component. It adds an overlay spanning the entire window that disabled all pointer-events. I've got a fix that allows the Toast to be interacted with, but the Sheet registers any event on the Toast as an outside click event - dismissing the Sheet alongside the Toast, which isn't ideal. We'll need to update the core Sheet component in the ui-library to fix that, alongisde the fix in the beta-ui.