Add support for language server settings and initialization options

[gravejester]

This update lets the user configure PowerShellEditorServices settings in the Zed settings.json file like this:

"languages": {
    "PowerShell": {
      "inlay_hints": {
        "enabled": true,
      },
      "formatter": "language_server",
      "format_on_save": "on",
    },
  },
"lsp": {
    "powershell-es": {
      "settings": {
        "powershell": {
          "codeFormatting": {
            "openBraceOnSameLine": true,
            "addWhitespaceAroundPipe": true,
            "trimWhitespaceAroundPipe": true,
            "ignoreOneLineBlock": true,
          },
        },
      },
    },
  },

[cla-bot]

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[gravejester]

@cla-bot check

[cla-bot]

The cla-bot has been summoned, and re-checked this pull request!

[MrSubidubi]

Looks good overall although has some issues I noted.

Also, could you perhaps add a small note for this in the README? Thanks!

[gravejester]

@MrSubidubi Sorry about the mess.. I'm not really a Rust developer (as you probably noticed) 😄 I just really wanted the possibility of setting the formatting options for the PowerShell language server, and since no one else did it I thought I'd try it myself.

I have tried to fix it based on your suggestions. Please let me know if there is something else that needs to be done.

[MrSubidubi]

All good, no worries! Looks much better now, so thanks for the quick follow-up!

Quickly hopped on and cleaned up some stuff which we should have done prior, but no worries there.

Thanks for your contribution and congratulations to your first contribution! 🎉