[BUG] embedWindow removed from `vedo` so brainrender error message is misleading.

[alessandrofelder]

vedo doesn't have an attribute embedWindow (anymore) so we should not suggest it as a solution in brainrender anymore.

[Spkap]

Hey, I’ve submitted a PR: #414 to resolve this issue. Please check it once.

Could you review it when you have a chance? Thanks!