Release status v2.51.0

- [ ] [DeltaChat Website](https://delta.chat/en/download) - [ ] [flathub](https://flathub.org/apps/chat.delta.desktop) https://github.com/flathub/chat.delta.desktop/pull/204 - [x] [GitHub release](https://github.com/deltachat/deltachat-desktop/releases) - [x] downloadable files also on [GitHub](https://download.delta.chat/desktop/) - [ ] [MacOS store](https://apps.apple.com/us/app/delta-chat-desktop/id1462750497) (submitted) - [x] [Windows store](https://apps.microsoft.com/detail/9pjtxx7hn3pk) (approved) - [ ] [homebrew](https://formulae.brew.sh/cask/deltachat) - [ ] [arch](https://archlinux.org/packages/extra/any/deltachat-desktop/) - [ ] [nix](https://search.nixos.org/packages?channel=unstable&show=deltachat-desktop&from=0&type=packages&query=deltachat) - [x] [snap](https://snapcraft.io/deltachat-desktop) (community) - [x] [FreeBSD](https://www.freshports.org/net-im/deltachat-desktop)