build(deps): install Linux native binaries for the WSL backend

The WSL parallel-backend runs a Linux node against the same node_modules
the Windows desktop uses (via /mnt/c). Platform-gated optional native
deps -- e.g. @yuuang/ffi-rs-linux-x64-gnu (pulled in transitively) -- are
only fetched for the install host's platform, so a Windows pnpm install
omitted the Linux binaries and the WSL backend crash-looped on
"Cannot find module '@yuuang/ffi-rs-linux-x64-gnu'".

Add supportedArchitectures (current + linux, x64, glibc) so one install
fetches both platforms' native binaries: electron.exe stays for the
Windows desktop while the Linux variants become available to the WSL
backend. This makes every install pull both platforms' optional natives,
which is required for the WSL backend to start.

Author: Jgratton24