Layout changes so that the last card isn't cut off.

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

@@ -20,16 +20,16 @@
             app:layout_constraintEnd_toEndOf="parent"
             app:layout_constraintStart_toStartOf="parent"
             app:layout_constraintTop_toTopOf="parent"
-            app:layout_constraintBottom_toTopOf="@+id/submission_dispatcher_scroll"
             app:title="@{@string/submission_dispatcher_headline}" />
 
         <ScrollView
             android:id="@+id/submission_dispatcher_scroll"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
+            android:layout_width="0dp"
+            android:layout_height="0dp"
             app:layout_constraintEnd_toEndOf="parent"
             app:layout_constraintStart_toStartOf="parent"
-            app:layout_constraintTop_toBottomOf="@+id/submission_dispatcher_header">
+            app:layout_constraintTop_toBottomOf="@+id/submission_dispatcher_header"
+            app:layout_constraintBottom_toBottomOf="parent">
 
             <androidx.constraintlayout.widget.ConstraintLayout
                 android:layout_width="match_parent"