Merge pull request #13627 from Carreau/fix-doc-syntax DOC: misc fixes

DOC: misc fixes

Merge pull request #13626 from MrMino/changenote-pr-13624 Add a changenote for #13624

Add a changenote for #13624

Merge pull request #13625 from Carreau/nosni Remove set-next input when triggering help.

Remove set-next input when triggering help. This was a long standing feature from when the main way to edit code was readline. Now that we have proper history and editing frontend, including prompt toolkit this is not necessary, especially since it creates issue like in JupyterLab. Should close #13602

Merge pull request #13600 from Carreau/cell-id-II Allow to get cellid from ipykernel

docs

Allow to get cellid from ipykernel Other side of https://github.com/ipython/ipykernel/pull/886 half of https://github.com/ipython/ipython/issues/13579

Merge pull request #13624 from MrMino/fix-end-key Fix empty autosuggestions bugging out the end key