fix: Consider platform specific CRLF when generating d.ts files

WHen building @histoire/vendors the generated files were saved witn \n line endings. On Windows this resulted that these files were showing up as "changed". Using platform specific line endings solves this problem.

packages/histoire-vendors/rollup.config.mjs

@@ -29,13 +29,13 @@ export default defineConfig({
     }),
     {
       name: 'define',
-      transform (code) {
+      transform(code) {
         return code.replace(/__VUE_OPTIONS_API__/g, 'true')
       },
     },
     {
       name: 'process-build',
-      closeBundle () {
+      closeBundle() {
         try {
           const pkg = fs.readJsonSync('./package.json')
           const tempDir = path.resolve('./node_modules/.temp/histoire-vendors')
@@ -68,7 +68,7 @@ export default defineConfig({
               const filepath = file.replace(/\.d\.ts$/, '')
               const content = `import Default from '${filepath}'
 export default Default
-export * from '${filepath}'\n`
+export * from '${filepath}'\n`.replace(/\n/g, process.platform === 'win32' ? '\r\n' : '\n')
               fs.writeFileSync(path.basename(file).replace(/^b-/, ''), content, 'utf-8')
             }
             // Exports (package.json)