* allow to solo a 3D media from the GraphEditor by double clicking on a node or an attribute with the Control modifier pressed
* consistent with Viewer3D.MediaLibrary behavior (solo on Ctrl+Click on visibility button)
* handle supported file extensions in Viewer3DSettings
* required for PySide2 > 5.11.1 (and compatible with 5.11.1)
* AttributeItemDelegate: test for list length to determine whether to create a slider component (if range is set to None on Python side, it will be an empty list on the QML/JS side)
* using 'C' locale to ensure floating point values can be written using '.' decimal separator
* make TextField larger by default for numbers and fill width when slider is not defined
* avoid binding loop on height for ListAttributes by using contentHeight as implicitHeight
* add explicitly id for Connections in ComboBox
* NodeEditor
* exposes Node parameters: compatibility, attributes and logs
* provides a placeholder when no active Node
* AttributeEditor
* only displays the list of Attributes
* use 'AttributeEditor' for GroupAttributes in AttributeItemDelegate
* Layout
* move NodeEditor on the same SplitView level as GraphEditor
* move current node name and menu to the Panel's header
* fix reference to non-existing slider.value
* convert values to string to avoid e+XX notation on large numbers
* fix number of decimals based on stepSize to avoid floating point approximations
* bugfix: in latest PySide2 versions, application palette is not properly applied to all QtQuick Controls 2 components. Force this by exposing QApplication palette and bind it to the root ApplicationWindow.
* rename all "palette" ids to "activePalette" to avoid clashes with "palette" property on QtQuick Controls 2
* use parent component palette when it makes sense to propagate active/disabled style (instead of always using Active SystemPalette)
* avoid duplication of code for displaying labels of GroupAttribute's children
* display input/output aligned to the left/right
* add a background to improve readability
