Support `rtx list all` command following the asdf syntax

[danielfn]

Describe the bug

asdf has the asdf list all command but rtx seems to support only the rtx list-all format.

To Reproduce

It can be easily reproduced just by running the command with any plugin:

❯ rtx list all rust
rtx [all] plugin not installed
rtx Run with --verbose or RTX_VERBOSE=1 for more information

Expected behavior

The rtx list all command should behave as rtx list-all, in the same way as asdf list all:

In order words, the output should be like the next one:

❯ rtx list-all rust
nightly
beta
stable
1.61.0
[...]

rtx doctor output

rtx version:
  2023.12.40 linux-x64 (460e547 2023-12-28)

build:
  Target: x86_64-unknown-linux-gnu
  Features: DEFAULT, NATIVE_TLS, OPENSSL
  Built: Thu, 28 Dec 2023 15:30:24 +0000
  Rust Version: rustc 1.74.1 (a28077b28 2023-12-04)
  Profile: release

shell:
  /usr/bin/zsh
  zsh 5.8 (x86_64-ubuntu-linux-gnu)

rtx data directory:
  /home/danielfn/.local/share/rtx

rtx environment variables:
  RTX_SHELL=zsh

settings:
  {
    "experimental": false,
    "color": true,
    "always_keep_download": false,
    "always_keep_install": false,
    "legacy_version_file": true,
    "legacy_version_file_disable_tools": [],
    "plugin_autoupdate_last_check_duration": "7d",
    "trusted_config_paths": [],
    "log_level": "info",
    "trace": false,
    "debug": false,
    "verbose": false,
    "quiet": false,
    "asdf_compat": false,
    "jobs": 4,
    "shorthands_file": null,
    "disable_default_shorthands": false,
    "disable_tools": [],
    "raw": false,
    "yes": false,
    "task_output": null,
    "not_found_auto_install": true,
    "ci": false
  }

config files:
  /home/danielfn/.tool-versions

plugins:
  bun          (core)
  deno         (core)
  go           (core)
  java         (core)
  node         (core)
  python       (core)
  ruby         (core)
  rust         https://github.com/code-lever/asdf-rust.git#95acf4f

toolset:
  [email protected]

Additional context

We have a bunch of scripts and plugins that use asdf subcommands like this, so fully supporting the asdf syntax will allow people to migrate to rtx more seamlessly.

[danielfn]

I just noticed that this command is already mentioned in the README as a bad UX decision by asdf 😄

I've found asdf to be particularly rigid and difficult to learn. It also made strange decisions like having asdf list all but asdf latest --all (why is one a flag and one a positional argument?).

Although this is perfectly understandable, I see that commands like rtx plugin add (but not rtx plugin-add) are actually aliased, so now I'm not sure if this is intended behaviour.