Add Italian translation.

[boromyr]

Here are the files of my translation into Italian, partially revised.
qalculate-gtk.zip

[hanna-kn]

I noticed the text string that states that it is an automatic translation (using GPT-3). To what extent have you checked that the translation is correct?

Problems I've noted in the translation (at a quick glance):

• The translation of capitalized text strings is highly inconsistent (I assume that capitalization should generally not be used in the Italian translation)
• Inconsistent translation of bitwise AND, OR, and NOT ("AND bit a livello di bit", "OR Bitwise", "Operatore NOT bitwise")
• "Copy Full Text" translated as "Translate the following text into Italian..."
• "[EXPRESSION]" translated as "Regressione agli antropomorfi"

[boromyr]

Yes, I used an automatic translation engine and therefore there are many inaccuracies, I have corrected quite a few, but there are others that I am fixing. There are many, and it is not easy to find them all. I will update the files after further review.

[boromyr]

The strings that contain "_" what function do they have?

[hanna-kn]

The strings that contain "_" what function do they have?

The character after "_" is underlined and used as mnemonic accelerator key.

[hanna-kn]

I can add the translation to Qalculate even if not every inaccuracy has been fixed, if you somehow mark each translation string not checked or fixed as unfinished (preferably by adding a line with #, fussy above the line beginning with msgid).

[boromyr]

Ok, that's fine, wait until I finish completing other corrections and the strings with "_" and I will upload a beta version more suitable for publication. The remaining corrections can be reported by the community in this chat.

[boromyr]

LC_MESSAGES.zip

[Efois]

Ok, that's fine, wait until I finish completing other corrections and the strings with "_" and I will upload a beta version more suitable for publication. The remaining corrections can be reported by the community in this chat.

Do you need hep in reviewing them?