feat: add config system

lua/chai/config.lua

@@ -0,0 +1,16 @@
+local M = {}
+
+M.defaults = {
+    servers = {},
+}
+
+M.options = {}
+
+---set configuration
+---@param opts any plugin configuration
+function M.setup(opts)
+    -- TODO: Add validation
+    M.options = vim.tbl_deep_extend('force', M.defaults, opts)
+end
+
+return M

lua/chai/init.lua

@@ -1,13 +1,11 @@
 local M = {}
 
-local _opts = {}
+local config = require('chai.config')
 
 --- initializes chai.nvim plugin
 ---@param opts any plugin options
 function M.setup(opts)
-    _opts = opts
-
-    print("Hello world")
+    config.setup(opts)
 end
 
 return M