Fix Stationery theme on Android by keeping overlay hooks and CSS.

overlay/src/app/components/page/Page.tsx

@@ -7,6 +7,7 @@ import * as swipeCss from '../mobile/mobile-gestures.css';
 import { ScreenSize, useScreenSizeContext } from '../../hooks/useScreenSize';
 import { SidebarDockedCallPanel } from '../../features/call/SidebarDockedCallPanel';
 import { useShowCompactMasterView } from '../../hooks/useCompactNav';
+import { isStationeryTheme, useTheme } from '../../hooks/useTheme';
 
 type PageRootProps = {
   nav: ReactNode;
@@ -74,6 +75,7 @@ export function PageNav({
       grow={isMobile ? 'Yes' : undefined}
       className={classNames(css.PageNav({ size }), className)}
       shrink={isMobile ? 'Yes' : 'No'}
+      data-page-nav=""
     >
       <Box grow="Yes" direction="Column">
         {children}
@@ -89,6 +91,7 @@ export const PageNavHeader = as<'header', css.PageNavHeaderVariants>(
       className={classNames(css.PageNavHeader({ outlined }), className)}
       variant="Background"
       size="600"
+      data-folder-tab="nav"
       {...props}
       ref={ref}
     />
@@ -104,13 +107,16 @@ export function PageNavContent({
   scrollRef?: MutableRefObject<HTMLDivElement | null>;
   scrollProps?: React.ComponentProps<typeof Scroll>;
 }) {
+  const theme = useTheme();
+  const hideScrollbar = isStationeryTheme(theme);
+
   return (
     <Box grow="Yes" direction="Column">
       <Scroll
         ref={scrollRef}
         variant="Background"
         direction="Vertical"
-        size="300"
+        size={hideScrollbar ? '0' : '300'}
         hideTrack
         visibility="Hover"
         {...scrollProps}
@@ -126,6 +132,7 @@ export const Page = as<'div'>(({ className, ...props }, ref) => (
     grow="Yes"
     direction="Column"
     className={classNames(ContainerColor({ variant: 'Surface' }), className)}
+    data-page=""
     {...props}
     ref={ref}
   />
@@ -137,6 +144,7 @@ export const PageHeader = as<'div', css.PageHeaderVariants>(
       as="header"
       size="600"
       className={classNames(css.PageHeader({ balance, outlined }), className)}
+      data-folder-tab-bar=""
       {...props}
       ref={ref}
     />

overlay/src/app/features/room/message/Message.tsx

@@ -802,8 +802,9 @@ export const Message = as<'div', MessageProps>(
         gap="300"
         direction={messageLayout === MessageLayout.Compact ? 'RowReverse' : 'Row'}
         justifyContent="SpaceBetween"
-        alignItems="Baseline"
+        alignItems="Center"
         grow="Yes"
+        data-message-header=""
       >
         <Box alignItems="Center" gap="200">
           <Username

overlay/src/font-setup.ts

@@ -7,6 +7,11 @@ export const isCapacitorAndroid = Boolean(
   cap?.isNativePlatform?.() && cap?.getPlatform?.() === 'android'
 );
 
+// Stationery signatures use Caveat on all platforms (including Android WebView).
+await import('@fontsource/caveat/500.css');
+await import('@fontsource/caveat/600.css');
+await import('@fontsource/caveat/700.css');
+
 if (isCapacitorAndroid) {
   document.documentElement.classList.add('android-capacitor');
   document.documentElement.style.setProperty(