Release Update.

Improvements in login / logout process
Clearer explanation on how to restore an account
Fixed bug when opening links

Fixed scoring error in pink row.

Fixed a bug with the new number joker  in the standard game.

Now new: Challenge 2!
Test yourself in a new setup based on the familiar rules with small but subtle changes.

Fixed Bugs concerning screen size on iPhones with notch
Also further user management improvement

We solved a problem that could lead to errors during the singn process

Added a logout button for easier account switching.
Also added a warning when trying to delete an account without a linked email.
Fixed a sound problem on certain devices.

Fixed a problem with the statistics: Now cubed games are correctly handled for the personal stats. The weekly list were already fine.
Fixed problems with login in certain situations