add firebase, add screen flow

android/app/build.gradle.kts

@@ -3,6 +3,9 @@ import java.io.FileInputStream
 
 plugins {
     id("com.android.application")
+    // START: FlutterFire Configuration
+    id("com.google.gms.google-services")
+    // END: FlutterFire Configuration
     id("kotlin-android")
     // The Flutter Gradle Plugin must be applied after the Android and Kotlin Gradle plugins.
     id("dev.flutter.flutter-gradle-plugin")

android/app/google-services.json

@@ -0,0 +1,29 @@
+{
+  "project_info": {
+    "project_number": "147309310656",
+    "project_id": "dbiz-partner",
+    "storage_bucket": "dbiz-partner.firebasestorage.app"
+  },
+  "client": [
+    {
+      "client_info": {
+        "mobilesdk_app_id": "1:147309310656:android:86613d8ffc85576fdc7325",
+        "android_client_info": {
+          "package_name": "com.dbiz.partner"
+        }
+      },
+      "oauth_client": [],
+      "api_key": [
+        {
+          "current_key": "AIzaSyA60iGPuHOQMJUA0m5aSimzevPAiiaB4pE"
+        }
+      ],
+      "services": {
+        "appinvite_service": {
+          "other_platform_oauth_client": []
+        }
+      }
+    }
+  ],
+  "configuration_version": "1"
+}