fix(es_extended/shared/functions): fix ESX.GetConfig bug

[core]/es_extended/shared/functions.lua

@@ -31,7 +31,11 @@ end
 ---@param key? string Key pair to get specific value of config
 ---@return unknown Returns the whole config if no key is passed, or a specific value
 function ESX.GetConfig(key)
-    return key and Config[key] or Config
+    if key then
+        return Config[key]
+    end
+
+    return Config
 end
 
 ---@param weaponName string