Localize HeliosLauncher UI using lang files

Kamesuta commented 12 months ago

This pull request adds the following features:

Externalize the UI text into lang files and replace them with embedded codes using LangLoader.
- In ejs files, use the ejs output tag (<%- lang('～') %>) syntax.
Support argument expansion in LangLoader. Expand the object in the second argument from {placeHolder}.
Replace json with toml for easier element addition and indentation.
- If you don't like toml, you can revert the last commit to go back to json.

dscalzi commented 12 months ago

I will take a look, this would be a very nice addition

luisBazanDev commented 11 months ago

It is a very good implementation, I hope you can accept it as soon as possible so I can do the translation into Spanish.

Codixer commented 11 months ago

I wonder the state of this 0_0

Kamesuta commented 11 months ago

Translators can now change the language by simply adding a file like ja_JP.toml and uncommenting //exports.loadLanguage('xx_XX') in langloader.js.
- You can add only the text you wish to translate to the language file you have added. For items that are not written, the default en_US text will be used
- This change is ready to accept Pull Requests to add toml files for various languages
I have separated the following two files that have nothing to do with translation into separate files
- _placeholder.toml for texts that do not require translation (such as placeholder news article, and default overlay description)
- _custom.toml for launcher customizer (such as app title, github url, and welcome description)

dscalzi commented 10 months ago

Sorry this has taken a while, mostly looks good - I just need to checkout the branch and test a few things.