examples(cra): SKIP_PREFLIGHT_CHECK no longer necessary

[KonnorRogers]

• Make sure to delete node_modules and run yarn install so the resolutions will take effect. The SKIP_PREFLIGHT_CHECK message should no longer appear in CRA.

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🔨 Latest commit	1d0ecdefc5663ede16497319b383498cfb4571bc

[dayhaysoos]

I actually did this manually in another PR... Thank you for showing me how to get around it, though!