fix: resolve cross-platform path resolution in vite.config.ts

Author: agviegas

vite.config.ts

@@ -9,7 +9,7 @@ const writeIndexHTML = () => {
   const examplePaths = globSync("packages/**/src/**/example.html");
   for (const examplePath of examplePaths) {
     const directory = path.dirname(examplePath);
-    const packageNameMatch = directory.match(/packages\\([^\\]+)/);
+    const packageNameMatch = directory.match(/packages[\\\/]([^\\\/]+)/);
     if (!(packageNameMatch && packageNameMatch.length > 1)) continue;
     const packageName = packageNameMatch[1];
     const exampleName = path.basename(directory);