Dragging images under sceneEnvironment in navigator doesn't highlight node and creates texture in wrong place

To repro:

• Create 3d project
• Add .png and .hdr images into the project (e.g. from content library textures & environments)
• Drag added images to sceneEnvironment node in navigator

-> sceneEnvironment node should highlight as possible drag target, which it doesn't do.

-> When dropped, the new texture node should be created under material library node, not under sceneEnvironment node.

Same issue with TextureInput and SpriteParticle nodes, which also accept image drops and create textures out of them.