Update ja_jp.json

[TwelveYO21]

Sorted as well as the line in en_us.json

[karakufire]

Your this pull-request looks me draft or work in progress.
I'll evaluate higher the parts that tries to fix the differences between the 1.19.2 and 1.20.1 than other changes.
But, I couldn't find the meanings following changes:

• Sorted as well as the line in en_us.json

  • I think there is no need to bother changing entries order.
• Almost your addtions is taken by untranslated strings.
• Lines at 175-184, what is the meanings of re-adding entries that remain English?
• Lines at 774-783, they are REAL used. Read the manual and check shader list page.

Finally, if this pull-request is a work in progress, it should be draft. And if you pull-requested this as completed, there is no point in merging this request.

[TwelveYO21]

Sorry for the late reply.
I just adapted it to en_us.json in 1.20.1. I can't help with the translation work, but I just made it easier to edit later.

[karakufire]

At least the removes Lines at 774-783, desc.immersiveengineering.info.shader.reference.*, are not acceptable. Because they are still used in manual.
If you still would like ImmersiveEngineering to merge this pull-request, you should revert this changes.