Nushell Updates: Core, Extensions, Documentation, Scripts, and Reedline

- stormasm created [now that docs/commands is gone delete make_docs.nu too](https://github.com/nushell/nushell/pull/4853), and [delete docs/commands now that make_docs.nu is running on website](https://github.com/nushell/nushell/pull/4851) - sholderbach [detached `nu-ansi-term` crate from main tree, switch to `reedline` from crates.io](https://github.com/nushell/nushell/pull/4850) - rgwood [changed update help+examples for creating new columns](https://github.com/nushell/nushell/pull/4849) - chvck [moved repl loop and command/script execution to nu_cli](https://github.com/nushell/nushell/pull/4846) - hustcer created [feat: fix and update some examples](https://github.com/nushell/nushell/pull/4844) - elferherrera [removed cmd from edit](https://github.com/nushell/nushell/pull/4840), and [str to datetime dfr](https://github.com/nushell/nushell/pull/4833) - kubouch [fixed reporting of `which` and `$nu.scope`](https://github.com/nushell/nushell/pull/4836) - b333z created [Streaming support for lines with raw streams](https://github.com/nushell/nushell/pull/4832) ## Extension - fdncred [fixed typo](https://github.com/nushell/vscode-nushell-lang/pull/49), and [fixed some bugs](https://github.com/nushell/vscode-nushell-lang/pull/48) ## Documentation - rgwood [organized book pages by section](https://github.com/nushell/nushell.github.io/pull/302), and [Book: mention `help commands`](https://github.com/nushell/nushell.github.io/pull/300), and [Update insert/update/upsert docs](https://github.com/nushell/nushell.github.io/pull/298), and [Update front page](https://github.com/nushell/nushell.github.io/pull/297), and [Search and package.json cleanup](https://github.com/nushell/nushell.github.io/pull/293), and [Add links to RSS+Atom feeds](https://github.com/nushell/nushell.github.io/pull/292), and [Make command reference more compact](https://github.com/nushell/nushell.github.io/pull/291), and [Add command links to book](https://github.com/nushell/nushell.github.io/pull/285), and [Update env var docs for latest Nu](https://github.com/nushell/nushell.github.io/pull/283), and [Remove link to demo until it's updated](https://github.com/nushell/nushell.github.io/pull/282) - fdncred created [temporarily remove the contributor book until we can get it updated](https://github.com/nushell/nushell.github.io/pull/301), and [rename update to upsert](https://github.com/nushell/nushell.github.io/pull/296) - jt created [rounded hero images](https://github.com/nushell/nushell.github.io/pull/299) - PDQDakota [added Pwsh 7 && and || to operator map page](https://github.com/nushell/nushell.github.io/pull/290) - stormasm [moved make_docs.nu from nushell to the book](https://github.com/nushell/nushell.github.io/pull/289) - elferherrera created [Line editor page](https://github.com/nushell/nushell.github.io/pull/287) - hustcer created [Update docs for commands](https://github.com/nushell/nushell.github.io/pull/286) ## Nu_Scripts - fdncred [added ability to detect wsl](https://github.com/nushell/nu_scripts/pull/179), and [rename uses of `update` to `upsert`](https://github.com/nushell/nu_scripts/pull/178) - jt added a [simple website builder script](https://github.com/nushell/nu_scripts/blob/main/fun/website_builder.nu) ## reedline - sholderbach created [Prepare for new release](https://github.com/nushell/reedline/pull/352), and [Update developer focussed documentation](https://github.com/nushell/reedline/pull/351), and [Road to release: cleanup work](https://github.com/nushell/reedline/pull/345)

This update covers changes across various Nushell components. Core updates include documentation cleanup, crate management, command adjustments, example enhancements, and bug fixes. Extension updates focus on fixing issues in the VS Code extension. Documentation improvements involve page organization, content updates, and command reference enhancements. Nu_Scripts gained WSL detection and 'upsert' renames, along with a website builder script. Reedline saw release preparation, documentation updates, and cleanup work.