Add Italian translation

[ptoffy]

■■■■■□□□□□ 53%
Translated 27 of 51 pages

Thanks to @gi-pafumi for double checking the translations :)

Index

File	Status	Progress	Editor
index.md	Done	100%	@ptoffy

Install

File	Status	Progress	Editor
linux.md	Done	100%	@ptoffy
macos.md	Done	100%	@ptoffy

Getting Started

File	Status	Progress	Editor
hello-world.md	Done	100%	@ptoffy
folder-structure.md	Done	100%	@ptoffy
spm.md	Done	100%	@ptoffy
xcode.md	Done	100%	@ptoffy

Basics

File	Status	Progress	Editor
routing.md	Open
content.md	Open
client.md	Done	100%	@fpseverino
validation.md	Open
async.md	Open
logging.md	Open
environment.md	Open
errors.md	Open
controllers.md	Done	100%	@ptoffy

Fluent

File	Status	Progress	Editor
overview.md	Open
model.md	Open
relations.md	Open
migration.md	Done	100%	@fpseverino
query.md	Open
transaction.md	Done	100%	@fpseverino
schema.md	Open
advanced.md	Open

Leaf

File	Status	Progress	Editor
getting-started.md	Done	100%	@fpseverino
overview.md	Done	100%	@fpseverino
custom-tags.md	Done	100%	@fpseverino

Redis

File	Status	Progress	Editor
overview.md	Done	100%	@fpseverino
sessions.md	Done	100%	@fpseverino

Advanced

File	Status	Progress	Editor
middleware.md	Open
testing.md	Done	100%	@fpseverino
server.md	Open
files.md	Open
commands.md	Open
queues.md	Open
websockets.md	Done	100%	@ptoffy
sessions.md	Open
services.md	Open
apns.md	Done	100%	@ptoffy
request.md	Done	100%	@ptoffy

Security

File	Status	Progress	Editor
authentication.md	Done	100%	@ptoffy
crypto.md	Done	100%	@fpseverino
passwords.md	Done	100%	@fpseverino
jwt.md	Open

Deploy

File	Status	Progress	Editor
digital-ocean.md	Open
heroku.md	Open
supervisor.md	Open
systemd.md	In Progress	50%	@fpseverino
nginx.md	Open
docker.md	Open

Contributing

File	Status	Progress	Editor
contributing.md	Done	100%	@fpseverino

Version (4.0)

File	Status	Progress	Editor
legacy-docs.md	Done	100%	@fpseverino
upgrading.md	Done	100%	@ptoffy

Release Notes

File	Status	Progress	Editor
release-notes.md	Done	100%	@fpseverino