fix: restore share and note scrolling on ios pwa

bare routes lacked a scrollport under overflow:hidden html/body.
wide rich-text tables used overflow-x:auto alone, which computes
overflow-y:auto and traps vertical touch on iphone. force ink palette
on /s/* for a consistent public share look.

src/components/app-shell.tsx

@@ -24,7 +24,8 @@ export async function AppShell({ signedIn, navStyle, children }: Props) {
 
   if (bare || !signedIn) {
     // No shell — share viewer and signed-out pages render bare.
-    return <>{children}</>;
+    // html/body are overflow:hidden for the app grid; bare pages need their own scroller.
+    return <div className="bare-scroll">{children}</div>;
   }
 
   const useTopVariant = navStyle === "top-nav";