Nushell Updates: Contributions from Kubouch, efx, hustcer, wingertge, fdncred, and onthebridgetonowhere

- kubouch [fixed external completions relying on external commands](https://github.com/nushell/nushell/pull/4538), [fixed wrong FlatShape name of List](https://github.com/nushell/nushell/pull/4532), and [tested support fixes](https://github.com/nushell/nushell/pull/4517), and [Use overlay ID for module import lookup](https://github.com/nushell/nushell/pull/4514), and [Update CI 2](https://github.com/nushell/nushell/pull/4456), and [Update CI](https://github.com/nushell/nushell/pull/4445), and [Hide alias](https://github.com/nushell/nushell/pull/4432) - efx [ported post](https://github.com/nushell/nushell/pull/4537) - hustcer [added examples for env,let-env,rm,touch and date list-timezone](https://github.com/nushell/nushell/pull/4531), and [feat: update #4518, Add command examples for def, do, cp, mv, mkdir and ls](https://github.com/nushell/nushell/pull/4528), and [Add or update examples for some commands](https://github.com/nushell/nushell/pull/4521), and [fix: fix with-env example with pipeline input](https://github.com/nushell/nushell/pull/4458), and [feat: mark str to-datetime as deprecated command](https://github.com/nushell/nushell/pull/4448), and [feat: add unalias to deprecated command](https://github.com/nushell/nushell/pull/4440) - wingertge [fixed stream printing on Windows](https://github.com/nushell/nushell/pull/4527), and [Fix ignore to run side effects of previous command](https://github.com/nushell/nushell/pull/4510) - fdncred [standardized char nf terms](https://github.com/nushell/nushell/pull/4520), and [allow `dfr open` to open `tsv` files](https://github.com/nushell/nushell/pull/4516), and [remove $nu.keybinding-path](https://github.com/nushell/nushell/pull/4515), and [make find case insensitive](https://github.com/nushell/nushell/pull/4502), and [more test fixes](https://github.com/nushell/nushell/pull/4499), and [a few more tests](https://github.com/nushell/nushell/pull/4488), and [check to make sure we have data first](https://github.com/nushell/nushell/pull/4484), and [fix case insensitive sort](https://github.com/nushell/nushell/pull/4449), and [tweak plugin names in cargo.toml](https://github.com/nushell/nushell/pull/4441), and [forgot some plugins](https://github.com/nushell/nushell/pull/4439), and [tweak the wix](https://github.com/nushell/nushell/pull/4438), and [changed example description](https://github.com/nushell/nushell/pull/4434) - onthebridgetonowhere created [Add newline after version printout](https://github.com/nushell/nushell/pull/4508), and [Add version as a flag](https://github.com/nushell/nushell/pull/4507)

This section summarizes contributions to Nushell from several developers. Kubouch worked on fixing external completions, correcting FlatShape names, improving CI, and managing module import lookup. efx ported the 'post' command. hustcer focused on adding and updating command examples, and marking 'str to-datetime' as deprecated. wingertge addressed stream printing on Windows and the 'ignore' command. fdncred standardized char nf terms, enabled 'dfr open' for TSV files, removed '$nu.keybinding-path', improved case insensitivity in 'find' and sorting, and tweaked plugin names. Finally, onthebridgetonowhere added a newline after the version printout and introduced a version flag.