Link popover appears "above" modals

[shaunandrews]

If you click a link in a paragraph, a little popover appears that displays the link's URL and an button to edit the link. While this popover is open, you can then also open a modal. When both a popover and a modal are displayed at the same time, their z-index conflicts:

This is because both the popover and modal components have the same z-index of 1000000:

I suggest we update the z-index for the modal component (found here:

gutenberg/packages/base-styles/_z-index.scss

Line 122 in 6b89639

".components-modal__screen-overlay": 100000,

) to 1000001.

[annezazu]

From what I can see, this is no longer the case with the new preferences modal (tried with keyboard shortcuts and the welcome guide too):

Going to close this out as a result!