l10n: add/update Italian translations for many ingredients processing…

… methods (#7830)

Update ingredients_processing.txt

add/update Italian translations for pure, leaf, sliced, grated, granulated, pieces, flakes, flour, boned, shelled, peeled, pitted, peel, pulp, sieved, sap, juice, concentrated, double concentrated, dried, sundried, syrup, extract, pressed, cold pressed, frozen, unfrozen, blanched, caramelised, puffed, roasted, toasted, unsalted, sweetened, unsweetened, sugared, treated, untreated, malted, deodorized, fermented, marinated, pickled, brined, flavoured, smoked, non-hydrogenated, hydrogenated