Update IFCLoader example (#25440)

* Update IFCLoader example

* Update webgl_loader_ifc.html

* Update webgl_loader_ifc.html

* update three-mesh-bvh to fixed latest version

* update screenshot

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Co-authored-by: mrdoob <info@mrdoob.com>
Co-authored-by: Michael Herzog <michael.herzog@human-interactive.org>
Co-authored-by: Garrett Johnson <garrett.kjohnson@gmail.com>

Author: 4 people