refactor: get rid of nui-components (#118)

lua/avante/types.lua

@@ -22,6 +22,31 @@ local AvanteRenderer = require("nui-components.renderer")
 ---@field bufnr integer | nil
 local AvanteComponent = require("nui-components.component")
 
+---@class NuiSplit
+---@field winid integer | nil
+---@field bufnr integer | nil
+local AvanteSplit = require("nui.split")
+
+---@return nil
+function AvanteSplit:mount() end
+
+---@return nil
+function AvanteSplit:unmount() end
+
+---@param event string | string[]
+---@param handler string | function
+---@param options? table<"'once'" | "'nested'", boolean>
+---@return nil
+function AvanteSplit:on(event, handler, options) end
+
+-- set keymap for this split
+---@param mode string check `:h :map-modes`
+---@param key string|string[] key for the mapping
+---@param handler string | fun(): nil handler for the mapping
+---@param opts? table<"'expr'"|"'noremap'"|"'nowait'"|"'remap'"|"'script'"|"'silent'"|"'unique'", boolean>
+---@return nil
+function AvanteSplit:map(mode, key, handler, opts, ___force___) end
+
 ---@param opts table<string, any>
 ---@return NuiRenderer
 function AvanteRenderer.create(opts) end