* feat(mobile): implement custom tab bar and item pressable components on android native
Adds native Android implementations for custom UI components previously available on iOS:
- **Custom Tab Bar:**
- Implements `TabBarRootView` using `ViewPager2` and a custom `CustomTabBarView` (LinearLayout) to host RN-rendered tab items (`TabBarPortalView`).
- Provides `TabScreenView` as a container for page content within Fragments managed by `TabBarPagerAdapter`.
- Includes `TabBarModule`, `TabScreenModule`, and `TabBarPortalModule` for Expo autolinking and JS bridging (props: `selectedIndex`, event: `onTabIndexChange`, function: `switchTab`).
- This approach mirrors the iOS version by avoiding the native `TabLayout` and allowing full customization of the tab bar via React Native components.
- **Item Pressable:**
- Implements `ItemPressableView` extending `ExpoView`.
* Provides native touch feedback using Android's foreground ripple (`selectableItemBackground`) by default.
* Includes a prop `touchHighlight` to enable/disable feedback.
* Fires `onItemPress` event on click/tap.
* Includes `ItemPressableModule` for Expo integration.
* fix(mobile): Adjust content view `padding` to prevent overlap with Bottom Bar
* feat(mobile): implement native tab bar components and improve tab switching logic
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