i18n in admin/api-keys

[vlalx]

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Description

Replaced the strings with translation keys in admin/api-keys and added the missing keys in settings/api-keys.

How to test?

[vlalx]

@Lokowitz which section will be able to be taken to work, to synchronize the work?

[Lokowitz]

@vlalx You can continue in the other sections. Here is a small overview of the completed sections fosrl#669 .

I will be on vacation for the next days so feel free to pick a section of your choice :-)

I started in a lot of sections, so feel free to complete.