CatalogDetail, ProgramDetail, ProgramSearch and SupportAdmin all use
inline-styled root divs instead of the .page CSS class, so they were
missing the padding-bottom: 96px that clears the fixed bottom nav bar.
Last button/section was hidden behind the nav.
Adds paddingBottom: 96px to each page's root div. Support.jsx has its
own full-height chat layout and is intentionally left as-is.
The 'View Details' button on ProgramSearch navigated to /catalog/:id
but no route or page existed. Now creates a proper detail view that
fetches via getCatalogProgram, shows program metadata, weeks/workouts,
progression rules, and an Adopt button that redirects to the user's
new program tracking page on success.
