Translations update from Weblate

Translations update from Weblate for Keymanager/Index.

It also includes following components:

• Keymanager/Invoice

• Keymanager/Order

• Keymanager/Cost

• Keymanager/Help

• Keymanager/Key

• Keymanager/Login

• Keymanager/Admin

• Keymanager/Checkout

• Keymanager/Pageheader

• Keymanager/Agb

Current translation status:

mentioned in commit 2d6799b2

merged