[Feature Request] Autocomplete also inserts brackets at the end of functions()

I did some research, and pretty much every other major language extension like javascript, c#/++ and python have settings to allow autocomplete to add brackets at the end of function calls. It would be nice to see this feature implemented in this extension.

As an example imagine I want to autocomplete the function foo, right now it autocompletes it as is, ideally it would autocomplete it as foo().

首先找出 Lua language server 的 autocomplete 實作，以及現有與 completion 相關的設定。比較目前函式名稱的補全方式與所要求的 foo() 行為，接著確認驗證括號插入為可選且能用於函式呼叫所需的設定與測試。