Inter-roman doesn't work well for international sites

[cathysarisky]

assets/built.css is loading inter-roman from: ../fonts/inter-roman.woff2

Because inter-roman is only the roman characters of the font, display of heavily accented text is results in a mix of inter and fall-back font (Segoe on my browser) - which looks pretty bad!

Example:

Proposed solution: Provide a full version of Inter within the theme, or at least make that an option within theme settings.

Discussion here: https://forum.ghost.org/t/certain-characters-appear-bold-in-navigation-font/47800/8