feat: enable OTA updates via expo-updates

Author: Mishra-coder

mobile/app.json

@@ -7,6 +7,14 @@
     "icon": "./assets/icon.png",
     "userInterfaceStyle": "light",
     "newArchEnabled": true,
+    "updates": {
+      "url": "https://u.expo.dev/4e2e0935-79af-41b1-a1b8-af2b90d261d2",
+      "enabled": true,
+      "checkAutomatically": "ON_LOAD"
+    },
+    "runtimeVersion": {
+      "policy": "appVersion"
+    },
     "splash": {
       "image": "./assets/logo.png",
       "resizeMode": "contain",