Follow guidelines for some dialogs

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

@@ -6,7 +6,7 @@
 	android:layout_height="wrap_content"
 	android:gravity="center_vertical"
 	android:orientation="vertical"
-	android:padding="20dp">
+	android:padding="?attr/dialogPreferredPadding">
 
 	<TextView
 		android:id="@+id/textView_title"
@@ -31,4 +31,4 @@
 		android:textColor="?android:textColorSecondary"
 		tools:text="Subtitle" />
 
-</LinearLayout>
+</LinearLayout>