feat(example): split demos into tabbed screens

Organize example app into separate bottom tab screens for easier navigation
and UI automation. Each screen is individually scrollable.

- Demos: Button, Fade, Slide, Enter/Exit, Interrupt, Rotate, Scale, Transform Origin
- Transitions: Combined, Custom Easing, Styled Card, Border Radius, Background Color, Delay, Style Re-Render
- Loops: Pulse (Reverse), Scrolling Banner
- Comparison: vs Reanimated (existing)

Added @react-navigation/native, @react-navigation/bottom-tabs, react-native-screens

Author: janicduplessis

example/package.json

@@ -12,12 +12,15 @@
   },
   "dependencies": {
     "@expo/metro-runtime": "~55.0.6",
+    "@react-navigation/bottom-tabs": "^7.15.5",
+    "@react-navigation/native": "^7.1.33",
     "expo": "~55.0.0",
     "react": "19.2.0",
     "react-dom": "19.2.0",
     "react-native": "0.83.0",
     "react-native-reanimated": "^4.2.2",
     "react-native-safe-area-context": "^5.7.0",
+    "react-native-screens": "^4.24.0",
     "react-native-web": "^0.21.0",
     "react-native-worklets": "^0.7.4"
   },
@@ -44,4 +47,4 @@
   "resolutions": {
     "@react-native/gradle-plugin": "0.83.0"
   }
-}
+}