Move lsp config to local file structure

.config/nvim/lsp/fsautocomplete.lua

@@ -0,0 +1,54 @@
+---@brief
+---
+--- https://github.com/fsharp/FsAutoComplete
+---
+--- Language Server for F# provided by FsAutoComplete (FSAC).
+---
+--- FsAutoComplete requires the [dotnet-sdk](https://dotnet.microsoft.com/download) to be installed.
+---
+--- The preferred way to install FsAutoComplete is with `dotnet tool install --global fsautocomplete`.
+---
+--- Instructions to compile from source are found on the main [repository](https://github.com/fsharp/FsAutoComplete).
+---
+--- You may also need to configure the filetype as Vim defaults to Forth for `*.fs` files:
+---
+--- `autocmd BufNewFile,BufRead *.fs,*.fsx,*.fsi set filetype=fsharp`
+---
+--- This is automatically done by plugins such as [PhilT/vim-fsharp](https://github.com/PhilT/vim-fsharp), [fsharp/vim-fsharp](https://github.com/fsharp/vim-fsharp), and [adelarsq/neofsharp.vim](https://github.com/adelarsq/neofsharp.vim).
+---
+
+local util = require 'lspconfig.util'
+
+---@type vim.lsp.Config
+return {
+  cmd = { 'fsautocomplete', '--adaptive-lsp-server-enabled' },
+  root_dir = function(bufnr, on_dir)
+    local fname = vim.api.nvim_buf_get_name(bufnr)
+    on_dir(util.root_pattern('*.sln', '*.fsproj', '.git')(fname))
+  end,
+  filetypes = { 'fsharp' },
+  init_options = {
+    AutomaticWorkspaceInit = true,
+  },
+  -- this recommended settings values taken from  https://github.com/ionide/FsAutoComplete?tab=readme-ov-file#settings
+  settings = {
+    FSharp = {
+      keywordsAutocomplete = true,
+      ExternalAutocomplete = false,
+      Linter = true,
+      UnionCaseStubGeneration = true,
+      UnionCaseStubGenerationBody = 'failwith "Not Implemented"',
+      RecordStubGeneration = true,
+      RecordStubGenerationBody = 'failwith "Not Implemented"',
+      InterfaceStubGeneration = true,
+      InterfaceStubGenerationObjectIdentifier = 'this',
+      InterfaceStubGenerationMethodBody = 'failwith "Not Implemented"',
+      UnusedOpensAnalyzer = true,
+      UnusedDeclarationsAnalyzer = true,
+      UseSdkScripts = true,
+      SimplifyNameAnalyzer = true,
+      ResolveNamespaces = true,
+      EnableReferenceCodeLens = true,
+    },
+  },
+}