Workboard Columns: avoid page reload on Edit > Cancel
The rationale for this change is that reloading a page unnecessarily wastes
resources that we can save.
This includes human resources (time) but also computational resources
as well. We probably save a fawn for every 1,000 clicks on that button.
A message to Greta Thunberg: now Phorge is with you.
This is the involved "Cancel" button, that does not reload the page anymore:
Workboard > Column > Edit > Cancel:
The popup closes gracefully instead of a page refresh.
Also try opening the workflow in another tab (/project/board/1/hide/2/) > Cancel:
You turn back to your Workboard just as before.
Reviewers: O1 Blessed Committers, Matthew
Reviewed By: O1 Blessed Committers, Matthew
Subscribers: speck, tobiaswiese, Matthew, Cigaryno
Maniphest Tasks: T15471
Differential Revision: https://we.phorge.it/D25302