As the temporary CameraInit nodes are not really part of the graph, their
attributes cannot be edited. By default, the intrinsics can be edited for
any CameraInit node from the intrinsics table.
For temporary CameraInit nodes, we want the intrinsics to be displayed in
read-only mode to ensure that the user cannot attempt to edit them, which
would cause errors.
Upon its creation, the temporary CameraInit node is locked (as if it were
computed), and the intrinsics table's component are updated to be displayed
as read-only if the CameraInit node is locked.
This commit fixes an "Unable to assign QJSValue to QObject*".
In IntrinsicDisplayDelegate, initialize the "attribute" variant to null
and set it as a parameter during the instantiation in ImageGallery.
All references to "model.display" in IntrinsicDisplayDelegate have been
replaced with a correct use of "attribute".
* Width of columns is now provided by a column width provider
* Text inputs now cover all the column width
* Text inputs now are right aligned for easier reading/comparing
