Localisation of custom navbar and footer

[merefield (Robert)]

If you made this a Theme Component there is inbuilt support:

Add localizable strings to themes and theme components

For those looking to add custom languages and translations to a Discourse theme or theme component, they can now include localised strings, which are made available for use in UI components. Translations are stored in the same format as core/plugin translations, and can be used in almost the same way. Themes can supply translation files in a format like /locales/{locale}.yml. These files should be valid YAML, with a single top level key equal to the locale being defined. These can be defined us…