Replace cron build with repository_dispatch

.github/workflows/gh-pages.yml

@@ -4,8 +4,8 @@ on:
   push:
     branches:
       - main # Set a branch name to trigger deployment
-  schedule:
-    - cron: '36 */2 * * *'
+  repository_dispatch:
+    types: [build_app]
 
 jobs:
   build_and_deploy: