Improve mobile adaptation for cards + change stylesheet

src/components/Routes/Routes.tsx

src/components/Season/SeasonCard.tsx

src/components/Season/SeasonCardBoss.tsx

src/components/Season/SeasonCardDone.tsx

src/components/Season/SeasonCardLocked.tsx

src/components/Season/SeasonCardOnGoing.tsx

src/components/Season/SeasonCardUnlocked.tsx

src/components/Season/SeasonView.spec.tsx

src/components/Season/SeasonView.tsx

src/components/Season/__snapshots__/SeasonView.spec.tsx.snap

src/components/Season/season.scss