[Feature]: Rewrite the Jupyenv

[GTrunSec]

What's missing?

1. migrate most kernels to upstream https://github.com/NixOS/nixpkgs/tree/master/pkgs/applications/editors/jupyter-kernels for long-term maintenance.
2. rewrite the jupyenv completely.
3. load the flake inputs lazily
4. choice to use codedownio/desktop
5. use the dream2ni as the main env framework.
6. use the flops to manage/load the nix files structurally.

Possible solution

No response

Alternatives

No response

Additional context

No response