[vendor-prefixer | css-jss] width: fill-available doesn't transform in firefox

__Expected behavior:__
When I write `width: 'available'` or `width: 'fill-available'` they should convert `-moz-available` and `-webkit-fill-available`according to the browser.

__Describe the bug:__
In firefox, there is value `-moz-available` that does the same thing as `-webkit-fill-available` (if I'm correct). When I write `width: 'available'` it converts only for firefox and when I write `width: 'fill-available'` it converts only for chrome. I think those options should interconvertible.

__Codesandbox:__
https://codesandbox.io/s/inspiring-heyrovsky-13hpe

__Versions (please complete the following information):__
- jss: 10.0.3
- Browser [e.g. chrome, safari]: chrome, firefox.
- OS [e.g. Windows, macOS]: macos