feat: change boss to duel

src/assets/icons/visu/challenge-caption-chart.svg

src/components/Challenge/ChallengeCard.tsx

src/components/Challenge/ChallengeCardDone.tsx

src/components/Challenge/ChallengeCardOnGoing.tsx

...nents/Challenge/__snapshots__/ChallengeCard.spec.tsx.snap

...s/Challenge/__snapshots__/ChallengeCardDone.spec.tsx.snap

...nents/Challenge/__snapshots__/ChallengeView.spec.tsx.snap

src/components/Challenge/challengeCardOnGoing.scss

src/components/Connection/ConnectionResult.tsx

src/components/Duel/DuelBar.tsx

src/components/Duel/DuelChart.tsx

src/components/Duel/DuelOngoing.spec.tsx

src/components/Duel/DuelOngoing.tsx

src/components/Duel/DuelResultModal.tsx

src/components/Duel/DuelUnlocked.spec.tsx

src/components/Duel/DuelUnlocked.tsx

src/components/Duel/DuelView.spec.tsx

src/components/Duel/DuelView.tsx

src/components/Duel/duelOngoing.scss

src/components/Duel/duelUnlocked.scss