Review v13 docs comments

[ntarocco]

• use: add doc for communities and requests #799 (comment)

  • fixed here: 0f52752

• docs: Add Audit logs usage and internal develop guide #786 (review)

  • move the extend part from internal to configure.
  • fix the ordered list numbers
  • move/merge the administration panel content in Use section

• ops: jobs: new jobs docs #784

  • move the Create and run section to Use
  • merge the various pages in Configure everything
  • improve the Scheduler part by highlighting the diff of the --sheduler + add it to the cookiecutter making sure that all works if no jobs defined or disabled. (in a note/warning to make sure that you have it)
  • highlight this change in the upgrade?

• v13: add curation checks documentation #796 (review)

  • move the reference to Maintain -> Architecture -> Curation

• https://github.com/inveniosoftware/docs-invenio-rdm/pull/737/files#r2172094122

  • Reference -> File Transfer remove the code bloc

• reference: replace rest api with openApi link #800

  • keep both for the time being, setup a dedicated maintainers discussion

• docs: internals: Add system fields #801 A couple of comments to address

• docker-compose app is obsolete #820

• update user docs #781

• docs: operate: customize: Tutorial for checkboxes in publish modal #828

• Review the menus and submenus, and decide if items should be alphabetically sorted

  • when specific sorting is required (e.g. installation steps) we should keep it, otherwise alphabetically sorted.

• Links redirection? leave it

• v13 release notes: compare versions move details under Use

• document copy btns DOIs/export

• fix documentation for job scheduler

• upgrade notes:

  • PDFjs nginx changes
  • Uppy/S3 nginx change