message: Enable Segoe Variable
  By adding another entry to our `maxversiontested`s.
  Screenshots in
  * [x] Closes
  * [x] I work here
  * [x] Docs are fine
  * [x] Tests are fine
diff: <!-- This will cause unpackaged activation failures in XAML Islands. -->
  <!-- (We use unpackaged activation in test scenarios.) See GH#10265. -->
  <maxversiontested Id="10.0.18362.0"/>
  +
  + <!-- You apparently are expected to include all the maxversiontested
  + entries separately. They are treated like an array. This one turns on Segoe
  + UI Variable, GH #12452 -->
  + <maxversiontested Id="10.0.22000.0"/>
  <supportedOS Id="{8e0f7a12-bfb3-4fe8-b9a5-48fd50a15a9a}" />
  </application>
  </compatibility>
  