Remove generated dialog (forms) is broken

[hatpick]

Describe the bug

When I remove a generated dialog from form dialog, it only removes files related to the top level dialog. All the lu and lg files for the properties remain on the disk which will cause a merging problem if I re-generate the dialog from the schema.

Version

Latest on main.

Browser

All browsers + electron.

OS

All platforms.

To Reproduce

Steps to reproduce the behavior:

0. Build composer with forms feature flag.
1. Create a form dialog schema.
2. Generate dialog.
3. Go to the generated dialog.
4. Select remove this dialog from the project tree.
5. See the error as well as check the bot project file to see they are not removed.

Expected behavior

The entire files/dirs related to this dialog should be removed.

Note: router.delete('/formDialogs/:projectId/:dialogId', FormDialogController.deleteDialog);