Fix logic error in vendored Liberation Sans font handling. We were computing the set of available font families before registering the vendored Liberation Sans fonts
Use the fontconfig feature flag to the fontdb crate to look up system fonts dynamically based on fontconfig configuration files.
Include DejaVu* font fallback for monospace and serif (These are available in ubuntu minimal images).
Various fixes and improvements to font handling:
fontconfigfeature flag to thefontdbcrate to look up system fonts dynamically based onfontconfigconfiguration files.DejaVu*font fallback for monospace and serif (These are available in ubuntu minimal images).