Made the UI work at least partially on RTL layouts

app/src/main/res/layout-sw600dp-land/activity_setup.xml

@@ -14,7 +14,6 @@
     android:layout_height="wrap_content"
     android:layout_gravity="right|bottom"
     android:layout_marginBottom="16dp"
-    android:layout_marginEnd="80dp"
     android:layout_marginRight="80dp"
     android:tint="#ffffff"
     app:backgroundTint="#8A000000"

app/src/main/res/layout-sw600dp/activity_setup.xml

@@ -19,7 +19,6 @@
       android:layout_height="wrap_content"
       android:layout_gravity="right|bottom"
       android:layout_marginBottom="16dp"
-      android:layout_marginEnd="16dp"
       android:layout_marginRight="16dp"
       android:tint="#ffffff"
       app:backgroundTint="#8A000000"

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

@@ -14,7 +14,6 @@
     android:layout_height="wrap_content"
     android:layout_gravity="right|bottom"
     android:layout_marginBottom="16dp"
-    android:layout_marginEnd="16dp"
     android:layout_marginRight="16dp"
     android:tint="#ffffff"
     app:backgroundTint="#8A808080"