Convert remaining TS files into JS for frontend

[lin8231]

Description

Team started with a TS repo but decided to shift to JS, need to clean up files that are TS

Acceptance Criteria

• [ ] All TS and TSX are converted and translated to JS
• [ ] remove TS dependencies
• [ ] Make sure app still runs

Implementation details

n/a

Testing notes

n/a

[lusicle]

lgtm