fix: allow characters in the supplementary special-purpose plane

[dummdidumm]

fixes #15821

Source: https://en.wikipedia.org/wiki/Plane_(Unicode)#Supplementary_Special-purpose_Plane

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🦋 Changeset detected

Latest commit: 9a3fcc4

The changes in this PR will be included in the next version bump.

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Playground

pnpm add https://pkg.pr.new/svelte@15823