Remove "Copyright © 2025 . All rights reserved."

[svenseeberg]

Motivation

We usually use copyleft licenses? I think a copy right does not apply, even in the back end.

Proposed Solution

Remove the copyright notifaction.

Alternatives

N/A

Additional Context

N/A

[JoeyStk]

@svenseeberg Do you mean in the README? Copyright © 2020 [Tür an Tür - Digitalfabrik gGmbH](https://github.com/digitalfabrik) and [individual contributors](https://github.com/digitalfabrik/lunes-cms/graphs/contributors). All rights reserved.? I couldn't find an instance with 2025, only with 2020 🤔