* break long commands into multiple lines for readability
* fix the format of closures
We generally write `{|| ...}` instead of `{ || ...}`.
* remove the `$"--opt=(val)"` structure when possible
`starship` does not require to use `--opt=val` and so we do not
need to do that with Nushell :)
the only place where this is required is with `--status` because
`$env.LAST_EXIT_CODE` can be negative and `starship` does not
appear to *like* values of the form `-2`...
so i left this line as it was.
on the other hand, `$env.CMD_DURATION_MS` and `(term size).columns`
should be fine 😌
* simplify the `config` mutation with new `?` syntax
This is a new very handy feature of Nushell which gives a much
simpler command combined with `default` and `merge`.
* put all `let-env`s inside an `export-env` with `load-env`
This commit has two reasons of existing:
- i think it makes it a bit easier to read with less `let-env`s
- it transforms the *script* into both a valid module and a valid
overlay
* bump the version to `0.78` in to docs
* add a note about the init file being also a module to all docs
* tweak the documentation
* update the Nushell part of the install script
* format the vuepress config file
as previous commit 117580136d3da5e00a4ccb7ada508c8510a2e50e was
not successful, let's try to make the CI happy manually 😌
* remove code quotes in the `config_cmd` of Nushell
* format the style in the Nushell `warning` section
