[CW2-31] refactor code

[derekxu04]

Changes:

• Fixed assets not showing up on some pages
• Refactored data.ts format
• Created components for Layout, PageBody and PageTitle
• Some fixes to hamburger and pages
• Changed about description to be more comprehensive
• Changed breadcrumb -> this is probably the biggest change (I thought the previous breadcrumb didn't really make sense, only worry is this might be too repetitive given the logo above? not sure)

[andrew-l3]

Seems good. Going down the refactoring path, we could probably simplify components in files like execs-directors-subcoms.tsx and constitution.tsx (i.e. add a component and move its data to an existing .ts file like before) but that can be done down the line.