Fix gallery mobile view issues

- Make logout button show only icon on mobile (no text)
- Move upload button from top bar to sidebar menu on mobile
- Fix top bar layout with proper structure:
  - Logo on left
  - Gallery title centered
  - Event date and expiration date shown below title on mobile
- Improve responsive design for header elements
- Ensure upload button only appears in menu when uploads are enabled

🤖 Generated with [Claude Code](https://claude.ai/code)

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

frontend/src/components/gallery/PhotoGridWithLayouts.tsx

@@ -32,6 +32,8 @@ interface PhotoGridWithLayoutsProps {
   showSelectionControls?: boolean;
   eventName?: string;
   eventLogo?: string | null;
+  eventDate?: string;
+  expiresAt?: string;
 }
 
 export const PhotoGridWithLayouts: React.FC<PhotoGridWithLayoutsProps> = ({ 
@@ -44,7 +46,9 @@ export const PhotoGridWithLayouts: React.FC<PhotoGridWithLayoutsProps> = ({
   onToggleSelectionMode: parentToggleSelectionMode,
   showSelectionControls = true,
   eventName,
-  eventLogo
+  eventLogo,
+  eventDate,
+  expiresAt
 }) => {
   const { t } = useTranslation();
   const { theme } = useTheme();
@@ -160,6 +164,8 @@ export const PhotoGridWithLayouts: React.FC<PhotoGridWithLayoutsProps> = ({
     onPhotoSelect: handlePhotoSelect,
     eventName,
     eventLogo,
+    eventDate,
+    expiresAt,
   };
 
   let LayoutComponent;