[Update] Fully supported Italian

The game fully supported Italian for now.
Thanks to Italo for the Italian translation and proof.
He also pointed out some spelling misses in the English version.
Thank you so much ！

· 【Italian version】Fix flaws in the texts of the 1st story.
· 【Italian version】Add translations of the 2nd and the 3rd story.
· 【English version】Fix serval spelling misses.
· Fix serval bugs.

I hope Italian players will enjoy this!

Greetings,
Ye@AkabaStudio