Load challenge data for challenge

[prasadwalvekar]

Paired with @youngkidwarrior

Card

LineupInfo: Challenge Data from Challenge

Changes

• Create fragment to load challenge data in challenge.tsx
• Replace placeholders data for username, title, content, totalDonations
• Load newly created challenge fragment in LineupList.tsx

[youngkidwarrior]

@prasadwalvekar it looks like there is some merge conflicts. Can you fix them?

(These shouldn't be as hard as last time)