Narrow component prop types, remove unused props and dead code (#2838)

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>

shared/components/cards/UserInfo.astro

@@ -16,18 +16,12 @@ interface Person {
   [key: string]: unknown
 }
 
-interface Props {
-  title?: string
-  personId?: number
-}
-
-const { title = 'Basic info', personId = 25 } = Astro.props
-const person = requireIndex(people as Person[], personId - 1)
+const person = requireIndex(people as Person[], 24)
 ---
 
 <div class="card">
   <div class="card-body">
-    <h3 class="card-title">{title}</h3>
+    <h3 class="card-title">Basic info</h3>
     <div class="mb-2">
       <Icon name="book" class="me-2 text-secondary" />
       Went to: <strong>{person.university}</strong>