Migrate to PowerShell Core by default?

[ForNeVeR]

Currently, the plugin prefers classic PowerShell if both PowerShell and PowerShell Core are available (see com.intellij.plugin.powershell.ide.run.PSExecutionUtilKt#findPsExecutable).

We should figure out if we it's safe to migrate to Core version by default.

My opinion is that if a person has explicitly installed the Core version, then it's likely they did that for a reason and want to use it: otherwise, why would they install it?