modal end of challenges

src/assets/icons/visu/challenge/star.svg

...s/ViewContainer/FinishedChallengeDetailsViewContainer.tsx

...ts/ViewContainer/OngoingChallengeDetailsViewContainer.tsx

...onents/ContentComponents/ChallengeList/ChallengesList.tsx

...nents/ContentComponents/ChallengeModal/ChallengeModal.tsx

src/custom.d.ts

src/locales/en.json

src/styles/components/_challenges.scss