feat: add italian translation

[mmirandola-igw]

Hi, I've just added the italian translation for the Localization object. I believe I've followed all the required guidelines for this kind of PR, but let me know if something miss.

In the PR that you pointed to "mirror" (the portoguese lang one) there is also a test section, but I saw that the test folder was moved, and I think that only this language hase its own tests, so I didn't generated the italian ones.

Let me know if everything is correct. Thanks for your work

[abichinger]

Looks good. Thanks! ❤️

[abichinger]

Fixes: #81

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