Merge remote-tracking branch 'origin/668-phylo-on-the-exported-svg-file-fix-the-background-color-behind-the-label' into dev

(the flake build does take long, and it's only a dev dependency anyways)

https://dev.to/thejaredwilcurt/bun-hype-how-we-learned-nothing-from-yarn-2n3j

This simplifies the multitude of nix files that we have into 1 single flake.

CI is slow and this might be too much