Fable

Finally getting around to playing with Feliz itself more. Noticed a few things that should/could be changed:

Some properties are too strict. For example if I'm using Material-UI and want to set box-shadow I'm not able to set it through boxShadow as the overloads only accept int and int tuples. MaterialUI theme.shadows is an array of strings and the general usage is like this:

Putting types into a module is not a good idea. As it causes some issues with their consumption from WPF/UWP/Uno

It seems that currently, femto must be used for each project separately. It would be great if it could be used for all projects in a solution, and/or recursively for all projects in a subfolder.

Is your feature request related to a problem? Please describe.
Currently we're not using the source map for fable code (and I think neither for other transpiles)

Describe the solution you'd like
add an option for the fable config to enable source maps for fable apps (and if possible esbuild targets as well)