String.js (Italian Language) for Release 0.42

I hope that you are in the branch "release".
Update strings.js
Update strings.js

Remove "LINE_HEIGHT" and "GENERAL" strings
Update strings.js

Fix row "544"!
Update strings.js

Fix a error!
Merge pull request #8569 from Denisov21/patch-10

String.js (Italian Language) for Release 0.42