Use property scope in ISE theme

[TylerLeonhardt]

PR Summary

Goes with PowerShell/PowerShellEditorServices#1337

before and after

ISE:

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[TylerLeonhardt]

@justinytchen what do you think?

[TylerLeonhardt]

This change was due to @PrzemyslawKlys tweet about the Monokai theme:
https://twitter.com/PrzemyslawKlys/status/1288961019373649920?s=20

[PrzemyslawKlys]

Does this mean my issue will be gone (as in reverted for non ISE theme) or that I will be able to control those colors or better that those colors would be taken from the theme natively?

It does seem to give some benefits I guess - just the colors are not really something I would like to keep :-)

[PrzemyslawKlys]

Never mind, I see the other issue that demonstrates it. Thank you!