feat: add types for autocompletion with lua_ls

lua/astrolsp/config.lua

@@ -8,6 +8,7 @@
 -- @copyright 2023
 -- @license GNU General Public License v3.0
 
+---@type AstroLSPConfig
 return {
   --- Configuration table of features provided by AstroLSP
   -- @usage features = {

lua/astrolsp/init.lua

@@ -243,7 +243,7 @@ function M.lsp_opts(server_name)
 end
 
 --- Setup and configure AstroLSP
----@param opts table options passed by the user to configure AstroLSP
+---@param opts AstroLSPConfig options passed by the user to configure AstroLSP
 -- @see astrolsp.config
 function M.setup(opts)
   M.config = vim.tbl_deep_extend("force", M.config, opts)

lua/astrolsp/types.lua

@@ -0,0 +1,32 @@
+---@meta
+
+---@class AstroLSPFeatureOpts
+---@field autoformat boolean?
+---@field codelens boolean?
+---@field diagnostics_mode integer?
+---@field inlay_hints boolean?
+---@field lsp_handlers boolean?
+---@field semantic_tokens boolean?
+
+---@class AstroLSPFormatOnSaveOpts
+---@field enabled boolean?
+---@field allow_filetypes string[]?
+---@field ignore_filetypes string[]?
+
+---@class AstroLSPFormatOpts
+---@field format_on_save boolean|AstroLSPFormatOnSaveOpts?
+---@field disabled string[]?
+---@field timeout_ms integer?
+---@field filter (fun(client):boolean)?
+
+---@class AstroLSPConfig
+---@field features AstroLSPFeatureOpts?
+---@field capabilities table?
+---@field config lspconfig.options?
+---@field diagnostics table?
+---@field flags table?
+---@field formatting AstroLSPFormatOpts?
+---@field handlers table<string|integer,fun(server:string,opts:_.lspconfig.options)|boolean?>?
+---@field mappings table<string,table<string,table|boolean>>?
+---@field servers string[]?
+---@field on_attach fun(client,bufnr)?