fix(policy): Relax a bit ownership checks for moveChecks for shared nodes

This commit fixes a bug where a user member of a team (but NOT the owner
of such team) couldn't move nodes.
4 jobs for adinapoli/issue-455 in 38 minutes and 23 seconds (queued for 4 seconds)
latest
Status Job ID Name Coverage
  Cabal
passed #17692
cabal

00:15:48

 
  Stack
passed #17693
stack

00:02:06

 
  Bench
manual #17694
allowed to fail manual
bench
 
  Test
passed #17695
test

00:20:29