The running task tree may cancel automatically some tasks / groups.
Visualize the canceled task / group with cyan color.
Add footer with state legend.
Task-number: QTCREATORBUG-29834
Change-Id: Ie799fa7b803ca3cc5ac21c580c2f86cd41b3242b
Reviewed-by: hjk <hjk@qt.io>
Not all classes derived from TaskItem are tasks,
but the common denominator is that all may be placed
inside a group: thus GroupItem sounds more appropriate.
Addresses the 10th point in the bugreport below.
Task-number: QTCREATORBUG-28741
Change-Id: I94d728a8e39ec732810f2e5bbe6b9a76f3bc387c
Reviewed-by: Qt CI Patch Build Bot <ci_patchbuild_bot@qt.io>
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: hjk <hjk@qt.io>
