`space_around_table_append_operator` actual effect is inverse of expected in `.editorconfig` in IntelliJ on macOS

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### How are you using the lua-language-server?

Other

### Which OS are you using?

MacOS

### What is the issue affecting?

Formatting

### Expected Behaviour

`space_around_table_append_operator` setting to boolean true in `.editorconfig` expect `t[#t + 1] = 1`, instead of `t[#t+1] = 1`.

### Actual Behaviour

Inverse occurs. If boolean true, no space is added. If boolean false, space is added.

### Reproduction steps

1. In `.editorconfig`
2. Set `space_around_table_append_operator = true` under `[*.lua]`
- This follows the schema of [EmmyLuaCodeStyle](https://github.com/CppCXY/EmmyLuaCodeStyle)
3. Format a .lua file with:
```lua
t[#t+1] = 1
t[#t + 1] = 1
```
Output is inverse of what is expected:
```lua
t[#t+1] = 1
t[#t+1] = 1
```
Expected:
```lua
t[#t + 1] = 1
t[#t + 1] = 1
```

### Additional Notes

_No response_

### Log File

`SumnekoLua (3.15.0.46-IDEA243)`
I don't know where to get the Sumneko log file on IntelliJ.

Commencez par la section [*.lua] de .editorconfig et reproduisez le formatage dans IntelliJ sur macOS en utilisant les entrées de fichier Lua et le paramètre indiqués. Suivez la manière dont space_around_table_append_operator est interprété, puis vérifiez que true et false produisent le comportement d’espacement documenté.

Rédigé par le modèle d'indexation à partir du texte de l'issue.