Description:

Motivation

In the build list, a build that is currently running is displayed with a play (▶) button next to it. This is misleading: a build that is already running cannot be started again, so the play action has no meaningful effect in this state. At the same time, the action a user most likely wants on a running build - cancel it - is not available directly from the list, forcing the user to open the build and cancel it from there. This costs extra clicks/time, particularly when a build needs to be stopped quickly (e.g. a build stuck in a loop, consuming resources, or producing an unwanted deployment).

Proposed Solution

For builds in the running state, replace the play button in the build list with a cancel button (/~icons-ver-1FBC4B93BC2C8A6097C5F3E3EC33150B.svg#cancel), which cancels the running build directly from the list. Ideally:

• Show the cancel button only while the build is actually running (the same condition currently used to show the play button).
• Prompt for confirmation before cancelling, or make the action obvious enough (consistent with how cancellation is handled elsewhere in the UI) to avoid accidental cancellation.
• Keep the current play button behaviour for builds in states where starting/restarting is meaningful.
• Update the button's tooltip to reflect the action ("Cancel the build") so the change is discoverable.