Update app configuration and scripts for improved build process

- Added package name to app.json for better identification.
- Updated start scripts in package.json to use 'expo run' commands for Android and iOS.

package.json

@@ -4,8 +4,8 @@
   "version": "1.0.0",
   "scripts": {
     "start": "expo start",
-    "android": "expo start --android",
-    "ios": "expo start --ios",
+    "android": "expo run:android",
+    "ios": "expo run:ios",
     "web": "expo start --web",
     "test": "jest --watchAll"
   },