fix(config): add missing space on the default debug icon (#1879)

## Description

Adds the missing space from a9c660d

## Screenshots

Current:


![imagen](https://github.com/user-attachments/assets/9a3a1a0c-43ad-49f3-8b39-b3250f53ec40)

After:


![imagen](https://github.com/user-attachments/assets/3b3d4dfd-3c03-4db9-8f61-d2bd4f9ed22d)

Author: polirritmico

lua/lazy/core/config.lua

@@ -96,7 +96,7 @@ M.defaults = {
     icons = {
       cmd = " ",
       config = "",
-      debug = "●",
+      debug = "● ",
       event = " ",
       favorite = " ",
       ft = " ",