bug: Sync export to app

[asaura08]

builder 1.22.4 master (5377f0a)

The "Make this page a standard page" crea the file on source code of a custom app, but if you delete this page, delete client script js or CSS it only remove it from db not from source code, so looking yo the source code of the custom app you will see a lot of delete residual file of deleted page/scripts

Steps

1. Create a new page and make it standard page of you custom app
2. Clone it
3. Delete the cloned page
4. Go to apps/custom_app/custom_app/builder_files/pages, you will see 2 folders but on the frappe builder UI you only have 1 page

This should be like frappe Doctype, if you delete it on the UI it also delete it from the code.

[asaura08]

@surajshetty3416 I'm working on this feature

[asaura08]

@surajshetty3416 Done! 🚀