closes prefix-dev#487

![image](https://github.com/prefix-dev/pixi/assets/12893423/09887ec9-61d7-4b49-8438-002d987d20da)

I think this is enough info, can be less can be more, what do you think?

Closes prefix-dev#485 

Helps user with:
```
➜ pixi run bla
bla: command not found

Available tasks:
        build
        build-docs
        docs
        install
        lint
        test
        test-all

➜ 
```

Allows user to:
```
➜ pixi run 'echo $PIXI_PACKAGE_VERSION'
0.7.1-dev

➜ pixi run 'echo $PIXI_PACKAGE_VERSION && echo $PIXI_PACKAGE_NAME && echo $CONDA_PREFIX'
0.7.1-dev
pixi
/home/rarts/development/pixi/.pixi/env
```



Depended on denoland/deno_task_shell#98

Fixes an issue where if you install `pyside6` you would get an error:

```
 × could not uninstall python package pyside6-6.6.0. Manually remove the `.pixi/env` folder and try again.
  ╰─▶ the RECORD file is missing
```

…ix-dev#494)

This PR adds support for checking the satisfiability of the lock-file
which includes pypi-dependencies.

Purls have been added to the lock-file
(conda/rattler#414) (See also:
conda/ceps#63). This enables checking
which conda packages will install which pypi packages without needing to
check the internet. This ensures we can still check if a lock-file is up
to date quickly.

I did not profile this code but I think there are a lot of places we can
improve the performance. Thats for a later PR.

I also didn't add tests. I think we should but we can also do that in
another PR.

Closes prefix-dev#467

---------

Co-authored-by: Ruben Arts <[email protected]>

Co-authored-by: Bas Zalmstra <[email protected]>

…feat/remove-command