Support PowerShell language server settings

[itpropro]

It seems like the zed-powershell extension doesn't support providing settings to the lsp as documented in the official Zed docs.
Here is an example of how it looks for nil (lsp for Nix):

{
  "lsp": {
    "nil": {
      "settings": {
         "diagnostics": {
          "ignored": [ "unused_binding" ]
        }
      }
    }
  }
}

For the PowerShell lsp it should be possible to provide settings like this

    "powershell-es": {
      "settings": {
        "codeFormatting": {
          "openBraceOnSameLine": true
        }
      }
    },