feat: Implement initial authentication, multi-environment support, and core app infrastructure.

android/app/src/main/AndroidManifest.xml

@@ -1,6 +1,6 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android">
     <application
-        android:label="real_estate_mobile"
+        android:label="@string/app_name"
         android:name="${applicationName}"
         android:icon="@mipmap/ic_launcher">
         <activity