[NME] Fix light selection in Light Information Block

[carolhmj]

Forum issue: https://forum.babylonjs.com/t/nme-lightinformationblock-properties-cant-select-light-1-or-light-2/29888

The light property was correctly selected, but the options element wasn't updated.
Simple NME example: https://nme.babylonjs.com/#KDHJPM

[azure-pipelines]

Please make sure to tag your PR with "bug", "new feature" or "breaking change" tags.

[azure-pipelines]

Snapshot stored with reference name:
refs/pull/12466/merge

Test environment:
https://babylonsnapshots.z22.web.core.windows.net/refs/pull/12466/merge/index.html

To test a playground add it to the URL, for example:

https://babylonsnapshots.z22.web.core.windows.net/refs/pull/12466/merge/index.html#WGZLGJ#4600

Links to test babylon tools with this snapshot:

https://playground.babylonjs.com/?snapshot=refs/pull/12466/merge
https://sandbox.babylonjs.com/?snapshot=refs/pull/12466/merge
https://gui.babylonjs.com/?snapshot=refs/pull/12466/merge
https://nme.babylonjs.com/?snapshot=refs/pull/12466/merge

To test the snapshot in the playground with a playground ID add it after the snapshot query string:

https://playground.babylonjs.com/?snapshot=refs/pull/12466/merge#BCU1XR#0