- Move formatting responsibility to conform-nvim, instead of HLS
- Wrap formatter binaries separately now that we are not using the
HLS-bundled libraries
- Add helpful assertion message to enforce the "not HLS if
haskell-tools" invariant.
- Add helpful assertion message to enforce the "not DAP if not
haskell-tools" invariant.
Otherwise, formatting a .cabal file throws an error that cabal-fmt can't
be found. This is especially annoying if saving => formatting, because
each save throws an error which must be escaped.
- Rename hls -> haskell-language-server to match the nixpkgs name
- Remove unneeded injection
- Only set lsp filetypes in the language module, not the preset
- Remove unneeded `mkDefault`
- Use `root_markers` instead of yucky inline Lua
