chore: remove IDE config files and improve web platform compatibility

- Remove `.idea/` IntelliJ configuration files from version control
- Add web-specific touch handling for swipeable message bubbles and schedule screen
- Fix CSS touch-action rules for better web scrolling behavior
- Add nestedScrollEnabled to ScrollViews for proper gesture handling
- Improve null safety checks in profile screens
- Add horizontal ScrollView wrapper for notification filter tags
- Add hasHeader prop support for embedded profile screens

src/screens/profile/UserScreen.tsx

@@ -19,6 +19,7 @@ export const UserScreen: React.FC = () => {
     <UserProfileScreen
       mode={isSelfProfile ? 'self' : 'other'}
       userId={isSelfProfile ? undefined : userId}
+      hasHeader
     />
   );
 };