Language - Change 'Emergency Code' to 'Backup Code'

Google¹ and Authy² documentation uses "backup code" instead of "emergency code".

Also Microsoft³, Twitter⁴, Instagram⁵ or Steam⁶, to name a few.

^1. https://support.google.com/accounts/answer/1187538

^2. https://support.authy.com/hc/e…-Recovery-or-Backup-Code-

^3. https://support.microsoft.com/…52-4b6f-aa10-85c1560cdf59

^4. https://help.twitter.com/en/ma…with-login-authentication

^5. https://help.instagram.com/1006568999411025

^6. https://help.steampowered.com/…/view/7EFD-3CAE-64D3-1C31

Quote from Grafidea

The WoltLab team should optimize and clean up the translations. WoltLab translates very long and laboriously. Team, think about it! Thanks.

The Woltlab Team should really believe in the power of translations to create community and open market frontiers. Support collaborative translation tools, allow tracking of changes to language files in real time (for all apps), make all software really translatable via language files, unify terms with other platforms... But this is an old battle...