added textAlignment property to secondary button in login

Author: anitaa1990

vendored/WordPressLoginFlow/src/main/res/layout/login_form_screen.xml

@@ -52,6 +52,7 @@
             android:paddingEnd="@dimen/margin_medium_large"
             android:layout_marginRight="@dimen/margin_extra_large"
             android:layout_marginEnd="@dimen/margin_extra_large"
+            android:textAlignment="viewStart"
             android:gravity="start|center_vertical"
             tools:text="Secondary action"/>