Move members.tsx to members/index.tsx so $memberId.tsx resolves as a
sibling route. Fixes member detail page not loading when navigating
from members list.
- Member detail page at /members/:id with edit form and identity documents
- Expandable identity documents on account members tab
- Kebab menu on both members list and account members tab (Edit, View IDs, View Account, Delete)
- Identifier form with image upload (base64), ID type select, dates
- Wiki article for identity documents