fix: restore frontend page headings

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

frontend/src/components/layout/WorkspaceUtilities.tsx

@@ -1,17 +1,17 @@
-import {CalendarDays, Inbox, Mail} from 'lucide-react'
+import { CalendarDays, Mail } from 'lucide-react'
-import {NavLink} from 'react-router-dom'
+import { NavLink } from 'react-router-dom'
-import type {User} from '../../types'
+import type { User } from '../../types'
 
-export function WorkspaceUtilities({user}: { user: User | null }) {
+export function WorkspaceUtilities({ user }: { user: User | null }) {
   const profileLabel = user?.displayName || user?.email || 'Profile'
   return (
     <nav className="workspace-utilities" aria-label="Account navigation">
       <NavLink className="utility-link" to="/inbox">
-                <Mail size={18} aria-hidden="true"/>
+        <Mail size={18} aria-hidden="true" />
-                <span>Invitations</span>
+        <span>Inbox</span>
       </NavLink>
       <NavLink className="utility-link" to="/calendar">
-                <CalendarDays size={18} aria-hidden="true"/>
+        <CalendarDays size={18} aria-hidden="true" />
         <span>Calendar</span>
       </NavLink>
       <NavLink className="utility-link profile-utility" to="/profile">

frontend/src/components/ui/PageHeader.tsx

@@ -15,6 +15,7 @@ export function PageHeader({
     <header className="page-header">
       <div>
         <span className="eyebrow">{eyebrow}</span>
+        <h1>{title}</h1>
         {description && <p>{description}</p>}
       </div>
       {action}