Update of PC (2.1.0) and mobile (1.2.0) clients

These updates essentially have a major technical overhaul to accommodate the multilingual and some improvements in quality of life.

PC version and browser 2.1.0

New features:

The application is now ready to welcome international players.
Added description of decks in map exploration.
You can now concede a game.

Fixes:

Minor text corrections.

Mobile version 1.2.0

New features:

The application is now ready to welcome international players.
Adding an options screen.
Addition of descriptions in the map explorer.
You can now concede a game.
You can see how many copies of cards there are in a deck.

Improvements:

Alert messages now have a title and contextualization of the validation button.

Fixes:

Minor text corrections.