Add a Trash for forms deletion

[LAfricain]

Nextcloud (please complete the following information):

• Nextcloud-Version: (29.0.7)
• Forms-Version: 4.2.4

Is your feature request related to a problem? Please describe.

When I deleted a form by mistake, I lost the list of entries.

Describe the solution you'd like It would be interesting to add a trash to recover them just in case...