feat: Support setting state through redirect header

[skovhus]

Enable setting a State header when redirecting using data loaders similar to how you can set state when using the useNavigate hook.

#11274

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[skovhus]

One open question is weather we should handle non ISO-8859-1 code point. If we used a base64 format internally then consumers wouldn't need to worry about it. But currently consumers already need to make sure that the location is encoded for being formatted as a Response header. Ideally RR would abstract this away.