docs: Add WeatherForecast Application to ShowCase (#3850)

Author: Rehankhalil462

docs/src/components/Showcase.tsx

@@ -25,6 +25,13 @@ const data: Data[] = [
     ios: 'https://apps.apple.com/app/react-native-paper/id1548934513',
     github: 'https://github.com/callstack/react-native-paper/tree/main/example',
   },
+  {
+    color: '#696AC3',
+    name: 'Weather Forecast ',
+    image: '../showcase/weatherforecast.png',
+    android:
+      'https://play.google.com/store/apps/details?id=com.rehankhalil462.WeatherApp',
+  },
   {
     color: '#696AC3',
     name: 'YumMeals',