Update Android app login, home, and face verification flows.

Sync current local UI and activity changes to remote repository.

Made-with: Cursor

app/src/main/res/layout/face_verification_activity.xml

@@ -7,4 +7,14 @@
     android:layout_height="match_parent"
     tools:context=".login.FaceVerificationActivity">
 
+    <androidx.camera.view.PreviewView
+        android:id="@+id/previewView"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent" />
+
+    <com.example.defenseapplication.view.FaceOverlayView
+        android:id="@+id/overlay"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent" />
+
 </androidx.constraintlayout.widget.ConstraintLayout>