Missing i18n translation: ariaLanguage in \layouts\partials\navbar.html

[jaestevan]

Describe the bug

Missing string translation for ariaLanguage string in \layouts\partials\navbar.html:

aria-label="{{ i18n "ariaLanguage" }}{{ .Language.LanguageName }}"

I'd PR the translated strings myself but I don't really know what should be there as I am not using this feature. Still I am trying to get a clean outcome on build.

To Reproduce

1. run hugo with --printI18nWarnings flag.
2. See hugo warnings:

WARN  i18n|MISSING_TRANSLATION|en|ariaLanguage

Expected behavior

Provide the right string texts so there is no warning in hugo output.