Outdated example project for internationalizing games section

**Your Godot version:**
v4.1.1.stable.mono.official [bd6af8e0e]

**Issue description:**
Documentation relative to Internationalizing games is stated to be up to date but actually is not.
The[ project available](https://godotengine.org/asset-library/asset/134) is not up to date with Godot 4.1 version and throws errors when converting it.

**URL to the documentation page:**
[Link to the doc page](https://docs.godotengine.org/en/stable/tutorials/i18n/internationalizing_games.html#:~:text=Godot%20provides%20two%20ways%20to,language%20you%20want%20to%20test.)