Update VE core submodule to origin/wmf/1.38.0-wmf.18

New changes:
0c1a95a5d Localisation updates from https://translatewiki.net.
a369e0a83 Revert "Follow-up I0802440d9: Allow alien <tr>/<td>'s to be focused"

Bug: T298609
Bug: T299730
Change-Id: Ic68dc4cd0adf3d04a02d55254dd328c747f8e9c2