add inlang to make the contribution of translations easier

[felixhaeberle]

Let me know what changes you request for merging this PR.

Description

This pull request adds the possibility for contributors and translators to manage translations in a UI instead of files with no overhead for the maintainers. Additionally, I fixed some translations.

To get a UI for translations contained in this repository, an inlang.config.js has been created at the root of the repository. Furthermore, I added the few missing translations. If you want, I can add a small i18n section to the documentation on the README.

Overview

The changes of this PR and a live instance of the editor can be previewed with the following link https://inlang.com/editor/github.com/felixhaeberle/gmpublisher.
Note: This link should be changed to point to WilliamVenner instead of felixhaeberle after this PR has been merged.

Limitations

Certain actions are slow
Inlang is running entirely on git, giving tremendous CI/CD and contribution power to localization. That means that the whole gmpublisher repo is cloned into the browser which makes certain actions like the initial load and pushing changes slow. Those limitations will be fixed with future releases and require no input from gmpublisher.

Preview

Preview the messages on https://inlang.com/editor/github.com/felixhaeberle/gmpublisher.

[felixhaeberle]

@WilliamVenner Hey, just wanted to check-in if you want to improve the localization in your project? Let me know how I can further assist ✨