notes link and guide link, must redirect to translated content

[tassoman]

When people do a new registration on misskey, they can read Help and must agree with Notes misskey-hub page.

Misskey-hub website should redirect to translated content when available.
For example ./it/docs/notes.html or ./it/help.html

• MK source code, help link
• MK source code, notes link

[tassoman]

updated issue to v 2023.10.2