Add Japanese translation

[KaitoMuraoka]

This will be updated periodically.
I open the issue for organisation reason and to document the progress:

Index

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

Install

File	Status	Progress	Editor
linux.md	Done	100%	KaitoMuraoka
macos.md	Done	100%	KaitoMuraoka

Getting Started

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

Basics

File	Status	Progress	Editor
routing.md	Done	100%	KaitoMuraoka
content.md	Done	100%	KaitoMuraoka
client.md	Done	100%	KaitoMuraoka
validation.md	Done	100%	KaitoMuraoka
async.md	Done	100%	KaitoMuraoka
logging.md	Done	100%	KaitoMuraoka
environment.md	Done	100%	KaitoMuraoka
errors.md	Done	100%	KaitoMuraoka
controllers.md	Done	100%	KaitoMuraoka

Fluent

File	Status	Progress	Editor
overview.md	Open
model.md	Open
relations.md	Open
migration.md	Open
query.md	Open
transaction.md	Open
schema.md	Open
advanced.md	Open

Leaf

File	Status	Progress	Editor
getting-started.md	In Progress		KaitoMuraoka
overview.md	In Progress		KaitoMuraoka
custom-tags.md	In Progress		KaitoMuraoka

Redis

File	Status	Progress	Editor
overview.md	Open
sessions.md	Open

Advanced

File	Status	Progress	Editor
middleware.md	Open
testing.md	Open
server.md	Open
files.md	Open
commands.md	Open
queues.md	Open
websockets.md	Open
sessions.md	Open
services.md	Open
apns.md	Open

Security

File	Status	Progress	Editor
authentication.md	Open
crypto.md	Open
passwords.md	Open
jwt.md	Open

Deploy

File	Status	Progress	Editor
digital-ocean.md	Open
heroku.md	Open
supervisor.md	Open
systemd.md	Open
ngix.md	Open
docker.md	Open

Contributing

File	Status	Progress	Editor
contributing.md	Open

Version (4.0)

File	Status	Progress	Editor
legacy-docs.md	Open
upgrading.md	Open

Release Notes

File	Status	Progress	Editor
release-notes.md	Open

[KaitoMuraoka]

PR merged in the past

• Index : Start Japanese translation #899
• Install & Getting Started : Add Japanese translation for ”Install” and "Getting Started" #908
• basic : Add Japanese translation for ”basic" #948

[zukizukizuki]

I would like to help.

[0xTim]

@zukizukizuki there's a contributing guide for translations on the README - https://github.com/vapor/docs?tab=readme-ov-file#translating

So if everything makes sense feel free to start submitting PRs!

[KaitoMuraoka]

@zukizukizuki

Feel free to translate items that are marked as Open.
For the status marked as In Progress...
I'm sorry, I'll do it right away.🙇
It might be easier to review if you could consolidate the Pull Requests like this.

This item will be updated regularly.

[zukizukizuki]

Yes, sir. I will make PRs in due course.