The `Text` component in `Dialog` v1 is not properly rendering `font-family`

[joshblack]

Description

The dialog header is rendering with font-family: sans-serif. I also noticed all the styled system props are being passed through to the element itself

Steps to reproduce

1. Visit the storybook story for this component
2. Open the dialog
3. Observe that the title is being rendered with sans-serif (this should be pulling from a theme value)

Version

v36.x

Browser

No response