Thank you screen and card image adjustment (EXPOSUREAPP-4231) #1878

Co-authored-by: Ralf Gehrer <ralfgehrer@users.noreply.github.com>

Corona-Warn-App/src/main/res/layout/include_submission_done.xml

@@ -18,7 +18,7 @@
                 android:layout_width="@dimen/match_constraint"
                 android:layout_height="wrap_content"
                 android:focusable="true"
-                android:src="@drawable/ic_submission_illustration_thanks"
+                android:src="@drawable/ic_illustration_together"
                 app:layout_constraintEnd_toEndOf="parent"
                 app:layout_constraintStart_toStartOf="parent"
                 app:layout_constraintTop_toTopOf="parent"

Corona-Warn-App/src/main/res/layout/include_submission_status_card_done.xml

@@ -30,7 +30,7 @@
             android:layout_marginTop="@dimen/spacing_tiny"
             android:contentDescription="@string/submission_done_illustration_description"
             android:importantForAccessibility="no"
-            android:src="@drawable/ic_submission_illustration_thanks"
+            android:src="@drawable/ic_illustration_together"
             app:layout_constraintEnd_toEndOf="parent"
             app:layout_constraintStart_toStartOf="parent"
             app:layout_constraintTop_toBottomOf="@id/submission_done_card_title" />