Update Nim stdlib modules
Update Nim stdlib modules

Pull a fresh list of modules from Nim's documentation as some were missing, namely `strformat` and `sugar` which replaced `future`. Some stdlib modules were moved to https://github.com/nim-lang/graveyard and published to Nimble instead, where they should now be picked up by the linker.
fiatjaf/gh-browser,fiatjaf/module-linker,fiatjaf/module-linker