Faulthy translation key for covers

[DigiLive]

I think "covers":{"all_covers":"All Covers","covers":"Covers"} and "covers":{"all_covers":"Alle Bedekkingen","covers":"Bedekkingen"}
should be "cover":{"all_covers":"All Covers","covers":"Covers"}and "cover":{"all_covers":"Alle Bedekkingen","covers":"Bedekkingen"}

covers -> cover like in "climate":{"all_climates":"All Climates","climates":"Climates"}

The localization call expects the key to be singular: title:n.H.customLocalize("cover.all_covers")

If I change these two keys, the bug disappears for me.

Originally posted by @devmarcstorm in #157 (comment)

[devmarcstorm]

@DigiLive If you'd like, I can create a pull request with the fixes for translations/en.json and translations/nl.json.

[devmarcstorm]

@DigiLive I forgot to set “Closes #173” in the pull request. Can this be closed?