fix: types (#210)

lua/avante/sidebar.lua

@@ -31,11 +31,11 @@ local Sidebar = {}
 ---@field augroup integer
 ---@field code avante.CodeState
 ---@field winids table<string, integer> this table stores the winids of the sidebar components (result_container, result, selected_code_container, selected_code, input_container, input), even though they are destroyed.
----@field result_container AvanteComp | nil
+---@field result_container NuiSplit | nil
 ---@field result FloatingWindow | nil
----@field selected_code_container AvanteComp | nil
+---@field selected_code_container NuiSplit | nil
 ---@field selected_code FloatingWindow | nil
----@field input_container AvanteComp | nil
+---@field input_container NuiSplit | nil
 ---@field input FloatingWindow | nil
 
 ---@param id integer the tabpage id retrieved from api.nvim_get_current_tabpage()