fix: use path.sep in redirect-apps template exclusion for Windows compatibility (#28301)

* fix: use path.sep in redirect-apps template exclusion for Windows compatibility

* fix: normalize backslashes instead of using path.sep

---------

Co-authored-by: Romit <85230081+romitg2@users.noreply.github.com>

packages/app-store-cli/src/build.ts

@@ -492,7 +492,7 @@ function generateFiles() {
   const redirectAppSlugs: string[] = [];
   forEachAppDir((app) => {
     // Exclude templates - they are not actual apps
-    if (app.externalLink && !app.path.startsWith("templates/")) {
+    if (app.externalLink && !app.path.replace(/\\/g, "/").startsWith("templates/")) {
       redirectAppSlugs.push(app.name);
     }
   });