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Describe the enhancement you want to request

I see that "fsharp" language files are defined in the Opencode configs *.fs, *.fsx and *.fsi but the F# LSP is not installed by default.

LSP for F# is very simple to setup:

1. dotnet tool install fsautocomplete -g
2. Add the following section to the opencode.json:

  "lsp": {
    "fsharp": {
      "command": ["fsautocomplete"],
      "extensions": [".fs", ".fsx", ".fsi"]
    }
  }

...and it works! It would be nice to have this enabled by default in the installation.