Bug: "Copy page" contextual dropdown overlaps top banner and search box

[gsdv]

The dropdown rendered by contextual.options opens with z-index: 50, which is higher than the dismissible banner and the navbar's search box. As a result the dropdown visually covers them, and the top items in the menu are hard to read.

One example is in https://agentskills.com (on any page, click "Copy page" and scroll down slightly):

Expected: dropdown sits below the banner / navbar, like other floating menus do.

Environment:

• Browser: Chrome 146.0.7600.153, macOS 15.7.3
• Mintlify theme: mint
• Banner: dismissible: true
• All eight contextual.options enabled

Currently, lowering [data-radix-popper-content-wrapper] to z-index: 10 !important in custom CSS fixes it locally. However, this solution feels slightly hacky. but feels like the platform default should handle this.