fix(ui): correct the restore modal error message functionalities

[felismargarita]

What?

If an error comes out in the API during the restoring version, the UI modal will get into an abnormal status.

1. Restoring button can't go back to the Restore button
2. Restore Confirm modal can't be closed
3. Toaster error message is not displayed

Why?

An error happened in the API side should not be an edge case, eg a user throw an error in the hook or network issue, in this situation, the UI should handle the error scenario properly to exit from the processing status and rollback the UI status to be the original one and display a common error message to end users.

How?

Once the API status is not OK

1. reset the processing status
2. Activate the cancel button again
3. Display the toast message. (Actually, a common error toaster already exists for a long time, but it doesn't work because no toaster container exists)

Fixes #11059