Generated theme has issues with fullscreen modal

[KasperiP]

The currently generated theme stylesheet includes the following:

/* Modal */
.mantine-Modal-root {
  .mantine-Modal-content {
    border: 1px solid var(--mantine-color-default-border);
    border-radius: var(--mantine-radius-default);
  }
}

Mantine supports fullscreen modals, where no padding should be applied. However, the generated styles override this behavior, causing the padding to be applied even when the modal is in fullscreen mode.