title: Change AndroidManifest.xml on Ionic v3.7.0
body: <p>I'm using v3.7.0 and I want to change the AndroidManifest.xml when I build my app. Currently I have tried changing the <code>my-project-path/config.xml</code> file adding the the following lines:</p>
  
  <p>Option a.</p>
  
  <pre><code>&lt;widget&gt;
      &lt;preference name="android-manifest/application/activity/@android:windowSoftInputMode" value="adjustPan" /&gt;
  &lt;/widget&gt;
  </code></pre>
  
  <p>Option b.</p>
  
  <pre><code>&lt;widget&gt;
       &lt;preference name="android-windowSoftInputMode" value="adjustPan" /&gt;
  &lt;/widget&gt;
  </code></pre>
  
  <p>Then I do:</p>
  
  <pre><code>$ ionic cordova build android
  </code></pre>
  
  <p>And I was expecting the following change on <code>my-project-path/platform/android/AndroidManifest.xml</code>:</p>
  
  <pre><code>&lt;manifest&gt;
      &lt;application&gt;
          &lt;activity android:windowSoftInputMode="adjustPan"&gt;
          &lt;/activity&gt;
      &lt;/application&gt;
  &lt;/manifest&gt;
  </code></pre>
  
  <p>But I get the same result as without adding the preference settings:</p>
  
  <pre><code>&lt;manifest&gt;
      &lt;application&gt;
          &lt;activity android:windowSoftInputMode="adjustResize"&gt;
          &lt;/activity&gt;
      &lt;/application&gt;
  &lt;/manifest&gt;
  </code></pre>
  
  <p>How can I apply the desired effect to the AndroidManifest.xml?</p>
  
  <p>Thanks!</p>