PairWordCard: partial correct selection counts as correct

A subset of correct words with no wrong selections now triggers confetti and marks the card as solved.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/components/PairWordCard.jsx

@@ -126,9 +126,8 @@ export default function PairWordCard({ card, onComplete }) {
     if (selectedIds.size === 0 || confirmed) return
     setActiveChip(null)
     const correctIds = new Set(options.filter(o => o.correct).map(o => o.id))
-    const allCorrectSelected = [...correctIds].every(id => selectedIds.has(id))
     const noWrongSelected = [...selectedIds].every(id => correctIds.has(id))
-    const ok = allCorrectSelected && noWrongSelected
+    const ok = noWrongSelected
     setIsCorrect(ok)
     setConfirmed(true)
     if (ok) triggerConfetti()