Yopass

Added support for translations 🇩🇪 :es: 🇸🇪 #429

Big thanks to @Starbix for adding localisation support. Mount a locale file to /public/locales/en.json in the docker container to get your language of choice. A German translation is available here; https://github.com/arcadesolutionsag/docker-yopass

Copy to clipboard #442

Adds a button to copy secrets to clipboard