JavaScript - Sortable JS

added the library to experiment with dragging rows in a table.
Added to ~environment/experiment/technical-diary
set the Item table's date as the handle (ie the thing to click on to enable the dragging).
usual difficulty with importmaps.

 bin/importmap pin sortablejs 

copies the library to vendor/javascript.

Implemented succesfully with a stimulus controller. Didn't fully implement permanent (server-side) reordering as set out on go rails

(managed to delete this branch 28 April 2025, but recovered the main repo from github, phew)