refactor(lib): move info modal to dedicated /info route

- Add InfoRedirect component for one-time redirect to /info on page load
- Simplify Modal component to pure presentation (remove redirect logic)
- Change NavBar info button from showModal() to Link to /info route
- Remove unused window.my_modal_3 global type declaration
- Fix modal centering by removing conflicting position classes

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

app/src/App.tsx

@@ -22,6 +22,7 @@ import {
   Content,
   AuthProvider,
   Modal,
+  InfoRedirect,
   InvitePage,
   LoginPage,
   SignupPage,
@@ -41,7 +42,7 @@ import {
   UserSettings,
 } from 'utopia-ui'
 
-import { Route, Routes, useNavigate } from 'react-router-dom'
+import { Route, Routes } from 'react-router-dom'
 
 import './App.css'
 import { Suspense, useEffect, useState } from 'react'
@@ -196,14 +197,6 @@ function App() {
 
   const currentUrl = window.location.href
   const bottomRoutes = getBottomRoutes(currentUrl)
-  const navigate = useNavigate()
-
-  // Redirect to /info if map.info_open is true (on first load)
-  useEffect(() => {
-    if (map?.info_open && window.location.pathname === '/') {
-      void navigate('/info')
-    }
-  }, [map?.info_open, navigate])
 
   if (map && layers)
     return (
@@ -218,6 +211,7 @@ function App() {
           >
             <Permissions api={permissionsApiInstance} adminRole={config.adminRole} />
             {tagsApi && <Tags api={tagsApi}></Tags>}
+            <InfoRedirect enabled={map.info_open} />
             <SideBar routes={[...routes, ...layerPageRoutes]} bottomRoutes={bottomRoutes} />
             <Content>
               <Quests />

lib/src/Components/AppShell/InfoRedirect.tsx

@@ -0,0 +1,27 @@
+import { useEffect, useRef } from 'react'
+import { useNavigate } from 'react-router-dom'
+
+interface InfoRedirectProps {
+  /** If true, redirects to /info route on initial page load (once) */
+  enabled?: boolean
+}
+
+/**
+ * Redirects to /info route on initial page load when enabled.
+ * Only redirects once per session to avoid redirect loops.
+ * Place this component inside the Router context but outside of Routes.
+ * @category AppShell
+ */
+export function InfoRedirect({ enabled }: InfoRedirectProps) {
+  const navigate = useNavigate()
+  const hasRedirected = useRef(false)
+
+  useEffect(() => {
+    if (enabled && window.location.pathname === '/' && !hasRedirected.current) {
+      hasRedirected.current = true
+      void navigate('/info')
+    }
+  }, [enabled, navigate])
+
+  return null
+}

lib/src/Components/AppShell/NavBar.tsx

@@ -50,14 +50,9 @@ export default function NavBar({ appName }: { appName: string }) {
                   {appName}
                 </h1>
               </Link>
-              <button
-                className='tw:btn tw:px-2  tw:btn-ghost'
-                onClick={() => {
-                  window.my_modal_3.showModal()
-                }}
-              >
+              <Link className='tw:btn tw:px-2 tw:btn-ghost' to='/info'>
                 <QuestionMarkIcon className='tw:h-5 tw:w-5' />
-              </button>
+              </Link>
             </div>
           </div>
 

lib/src/Components/AppShell/index.tsx

@@ -1,4 +1,5 @@
 export * from './AppShell'
 export { SideBar } from './SideBar'
 export { Content } from './Content'
+export { InfoRedirect } from './InfoRedirect'
 export { default as SVG } from 'react-inlinesvg'

lib/src/Components/Gaming/Modal.tsx

@@ -8,7 +8,7 @@ export function Modal({ children }: { children: React.ReactNode }) {
     <MapOverlayPage
       backdrop
       card
-      className='tw:absolute tw:h-fit tw:max-h-[calc(100%-2.5em)] tw:top-4 tw:bottom-4 tw:left-1/2 tw:transform tw:-translate-x-1/2 tw:overflow-scroll tw:md:w-[calc(50%-32px)] tw:w-[calc(100%-32px)] tw:min-w-80 tw:max-w-[612px] tw:transition-opacity tw:duration-500 tw:opacity-100 tw:pointer-events-auto'
+      className='tw:h-fit tw:max-h-[calc(100%-2.5em)] tw:overflow-auto tw:w-[calc(100%-32px)] tw:min-w-80 tw:max-w-[612px] tw:transition-opacity tw:duration-500 tw:opacity-100 tw:pointer-events-auto'
     >
       {children}
     </MapOverlayPage>

lib/src/index.tsx

@@ -10,11 +10,3 @@ export * from './Components/Input'
 export * from './Components/Item'
 export * from './Components/Onboarding'
 export * from './Components/Profile'
-
-declare global {
-  interface Window {
-    my_modal_3: {
-      showModal(): void
-    }
-  }
-}