Restore batch templates mail

[Bezkup]

References

Fixes #9416

Description

Restored and renamed template mails for batch import status

List of changes in this PR:
As above

Checklist

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[tdonohue]

👍 Thanks @Bezkup ! This fixes a very obvious bug. These email templates need to exist since they are referenced.

[dspace-bot]

Successfully created backport PR for dspace-7_x:

• [Port dspace-7_x] Restore batch templates mail #9565