[공통][Common] 버튼 radius 요청 반영

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

@@ -206,7 +206,7 @@
         android:layout_width="match_parent"
         android:layout_height="42dp"
         android:layout_gravity="bottom"
-        android:background="@color/C000000"
+        android:background="@drawable/rectangle_black_radius_2"
         android:lineSpacingExtra="6sp"
         android:text="@string/confirm"
         android:textColor="@color/CFFFFFF"