Update Italian language

[bovirus]

@rcmaehl

Please describe your feature/changes on this pull:

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Please Screenshot/Capture your WNW11 new feature to demonstrate:

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• [ ] I had read the contributing guidelines
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• [ ] I ensured that my feature works properly, if applicable

Realign Italian string list to master English (for a better compare) Add not translated strings Revise some strings.

Please merge. Thanks.