Add translations

[logan17111]

I'm planning to self-host this project, but some of my users aren't really into English, would be cool to open a CrowdIn or something like that. I could help with french for example.

[civilblur]

Thank you for offering your help in localizing the app for French. It has been on my mind, and I might consider adding localization at a later point. I'm currently prioritizing adding new features however.

As there are things bound to change, such as UX, labels/descriptions, new features, and more, I try to keep things flexible until the structure is more established.