title: why $app-direction: rtl not working?
body: <p>Docs: <a href="https://ionicframework.com/docs/theming/rtl-support/" rel="nofollow noreferrer">https://ionicframework.com/docs/theming/rtl-support/</a></p>
  
  <p>I wonder why this variable <code>$app-direction: rtl;</code> in <code>/src/theme/variables.scss</code> not working / have no effect ?</p>
  
  <pre><code>ionic --version
  3.6.0
  </code></pre>
  
  <p>The UI is the same, with or without it.</p>
  
  <p>According to the docs, they state that $app-direction is set somewhere in the <code>./node_modules/ionic-angular/themes/ionic.globals.scss</code> file. at least for me - there's no such variable ... and as far as I'm aware - I'm using the latest version no ?</p>