Fix optionalDependencies for windows

[Clutz88]

When creating a new site using Laravel Herd on windows npm install failed with the following error:

Error: Cannot find module '../lightningcss.win32-x64-msvc.node'
Require stack:
- C:\Users\clutz\Herd\test-dependencies\node_modules\lightningcss\node\index.js
    at Function._resolveFilename (node:internal/modules/cjs/loader:1383:15)
    at defaultResolveImpl (node:internal/modules/cjs/loader:1025:19)
    at resolveForCJSWithHooks (node:internal/modules/cjs/loader:1030:22)
    at Function._load (node:internal/modules/cjs/loader:1192:37)
    at TracingChannel.traceSync (node:diagnostics_channel:322:14)
    at wrapModuleLoad (node:internal/modules/cjs/loader:237:24)
    at Module.require (node:internal/modules/cjs/loader:1463:12)
    at require (node:internal/modules/helpers:147:16)
    at Object.<anonymous> (C:\Users\clutz\Herd\test-dependencies\node_modules\lightningcss\node\index.js:22:22)
    at Module._compile (node:internal/modules/cjs/loader:1706:14)�[39m

Adding the win32 versions fixes this and allows npm install and npm run dev to work as expected