Adding further code notes languages

[good-praxis]

Hey folks, I am 99.9% sure that there is no way to open a PR for a new language to support through code notes on trilium (although adding the file type to the code note dropdown will require a PR), so I just wanted to ask ahead of loosing myself in the list of dependencies:

Which repos do I have to contribute to, to enable support for GDscript notes in Trilium?

I think Trilium uses mime-types for data file types, which in turn uses mime-db, but which dependency takes care of the syntax highlighting?

[zadam]

Trilium uses CodeMirror as the code editing/highligting component.